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Study sets matching "atoms chemistry chapter 4"

19 terms
Chemistry, Chapter 4: Atoms
Atom
Dalton's Atomic Theory
Democritus's Atomic Philosophy
Dalton's four major points in atomic t…
smallest particle of matter that retains the identify of an e…
an early theory relating chemical changes to events of the at…
In 300's BC reasoned that atoms were indivisible and indestru…
1. all elements are composed of tiny indivisible particles ca…
Atom
smallest particle of matter that retains the identify of an e…
Dalton's Atomic Theory
an early theory relating chemical changes to events of the at…
10 terms
Chemistry: Chapter 4: atoms
atom
electron
proton
neutron
Smallest unit of matter that retains the properties of an ele…
negatively charged particle in an atom
positively charged particle in an atom; located in nucleus
neutral charged particle in an atom; located in nucleus
atom
Smallest unit of matter that retains the properties of an ele…
electron
negatively charged particle in an atom
62 terms
Chemistry- Chapter 4 Atoms
Atomic Number
Atomic Mass
Democritus
Reasons why Democritus wrong
number of protons in an atom
This is the weighted average of the a naturally occurring iso…
- the first person to propose the idea that matter was not in…
wasn't able to perform experiments to refine and support his…
Atomic Number
number of protons in an atom
Atomic Mass
This is the weighted average of the a naturally occurring iso…
23 terms
Chemistry Chapter 4- Atoms
Democritis
Aristotle
John Dalton
Atomic Theory
came up with atoms and atom ideas
rejected the idea of atoms
came up with the atomic theory, english school teacher, chemi…
all matter is composed of atoms, all atoms of an element are…
Democritis
came up with atoms and atom ideas
Aristotle
rejected the idea of atoms
11 terms
Chemistry, Chapter 4: Atoms
Atom
electron
Proton
Neutron
smallest particle of matter that retains the identify of an e…
a negatively charged subatomic particle
positively charged subatomic particle
neutral subatomic particle. Discovered in 1932 by James Chadw…
Atom
smallest particle of matter that retains the identify of an e…
electron
a negatively charged subatomic particle
31 terms
Chemistry- Atoms (chapter 4)
Democritus
Lavoisier
Law of conversion of matter
Proust
world is made up of empty space and tiny particles called atoms
law of conversion of mass
total mass of reactants must equal total mass of products
law of definite proportions
Democritus
world is made up of empty space and tiny particles called atoms
Lavoisier
law of conversion of mass
32 terms
Chemistry: Chapter 4: Arrangement of Electrons in Atoms
electromagnetic radiation
electromagnetic spectrum
wavelength (λ)
hertz
a form of energy that exhibits wavelike behavior as it travel…
all the forms of electromagnetic radiation
the distance between corresponding points on adjacent waves
one wave per second
electromagnetic radiation
a form of energy that exhibits wavelike behavior as it travel…
electromagnetic spectrum
all the forms of electromagnetic radiation
Chemistry Chapter 4 Atom Structure
Dalton's atomic theory
atom
cathode ray
electron
states that matter is composed of extremely small particles c…
the smallest particle of an element that retains all the prop…
radiation that originates from the cathode and travels to the…
a negatively charged, fast-moving particle with an extremely…
Dalton's atomic theory
states that matter is composed of extremely small particles c…
atom
the smallest particle of an element that retains all the prop…
25 terms
chemistry chapter 4 atoms
Democritos
Dalton
atomic theory
atom
believed that everything was made of small particles that wer…
proposed the atom and atomic theory
all matter is composed of atoms; atoms of a given element are…
smallest piece of matter that still retains the property of t…
Democritos
believed that everything was made of small particles that wer…
Dalton
proposed the atom and atomic theory
68 terms
Chemistry Chapter 4 (Atoms)
the smallest particle of an element th…
Greek philosopher 460-370 BC
Among the first to propose the _______…
English school teacher 1766-1944
atom
Democritus
existence indivisible indestructible test democritus
Dalton
the smallest particle of an element th…
atom
Greek philosopher 460-370 BC
Democritus
90 terms
Chemistry Chapter 4: Arrangement of Electrons in Atoms
_____________________ has characterist…
what is electromagnetic radiation?
what are the characteristics of electr…
what does speed (constant (c)) mean?
light
a form of energy that exhibits wavelike behavior and travels…
1. speed... 2. amplitude... 3. wavelength... 4. frequency
speed of light - 3x10^8 m/s or 300,000,000
_____________________ has characterist…
light
what is electromagnetic radiation?
a form of energy that exhibits wavelike behavior and travels…
21 terms
Chemistry: Chapter 4- The Atom
Aristotle (400 B.C.)
Democritus
John Dalton (1766-1844)
Law of Simple Multiple Proportions
This person made a theory that everything was made of four el…
This person made a theory that matter was made up of atoms
Theory:... 1. Proposed the law of Simple Multiple Proportions... 2.…
Law that states atoms combine in simple, whole number ratios…
Aristotle (400 B.C.)
This person made a theory that everything was made of four el…
Democritus
This person made a theory that matter was made up of atoms
14 terms
Chemistry Chapter 4: Atoms
Atomic Mass Unit (AMU)
Element Symbol
Atomic #
Atomic Mass (Mr.Genther says we round…
1\12 mass carbon a atom
Top left corner, the elements identity
Top right corner, Number of protons
Protons + Neutrons
Atomic Mass Unit (AMU)
1\12 mass carbon a atom
Element Symbol
Top left corner, the elements identity
Chemistry chapter 4 atoms
Democritus(greek)
Antione Lavosier(french)
Law of conservation of mass
John Dalton(english)
Coins the name atom (means indvisible)
Law of conservation of mass
The number of each kind of atoms on the reacatant side must e…
Law of multiple proportions
Democritus(greek)
Coins the name atom (means indvisible)
Antione Lavosier(french)
Law of conservation of mass
Chemistry: Chapter 4: Atoms
Density
Periodic Table
Volume
Atom
ratio of the mass of an object to its volume
arrangement of elements in which the elements are separated i…
amount of space an object occupies
smallest particle of an element that retains its identity in…
Density
ratio of the mass of an object to its volume
Periodic Table
arrangement of elements in which the elements are separated i…
19 terms
Chemistry Chapter 4 Atoms and Bonding
Valence electron
Electron dot diagram
Chemical bond
Ion
The electrons that are in the highest energy level of an atom…
A representation of the valence electrons in an atom, using d…
The force of attraction that holds two atoms together
An atom or group of atoms that has become electrically charged
Valence electron
The electrons that are in the highest energy level of an atom…
Electron dot diagram
A representation of the valence electrons in an atom, using d…
21 terms
Chemistry Chapter 4 Atom Structure
Dalton's atomic theory
atom
cathode ray
electron
states that matter is composed of extremely small particles c…
the smallest particle of an element that retains all the prop…
radiation that originates from the cathode and travels to the…
a negatively charged, fast-moving particle with an extremely…
Dalton's atomic theory
states that matter is composed of extremely small particles c…
atom
the smallest particle of an element that retains all the prop…
19 terms
Chemistry Chapter 4: atoms
Atom
Democritus
Dalton
All elements have indivisible particle…
the smallest particle of an element that retains its identity…
First to come up with the idea of that atoms are indestructib…
First to develop the atomic theory
1/4 postulates
Atom
the smallest particle of an element that retains its identity…
Democritus
First to come up with the idea of that atoms are indestructib…
Chemistry: Chapter 4: Atoms
Density
Periodic Table
Volume
Atom
ratio of the mass of an object to its volume
arrangement of elements in which the elements are separated i…
amount of space an object occupies
smallest particle of an element that retains its identity in…
Density
ratio of the mass of an object to its volume
Periodic Table
arrangement of elements in which the elements are separated i…
27 terms
Chemistry Chapter 4: Atoms
Matter
Electron Cloud Model
Bohr Model
Nucleus
Made of atoms, either atoms by themselves or combination atom…
The current model that we use to explain the structure of the…
The model that we used to use to explain the structure of the…
The center of the atom; 99% of the mass of the atom is locate…
Matter
Made of atoms, either atoms by themselves or combination atom…
Electron Cloud Model
The current model that we use to explain the structure of the…
29 terms
Chemistry chapter 4 : elements, atoms, and atoms
Elements
compound
chemical formulas
Law of Conservation of Mass
made of tiny particles called atoms
always has the same relative numbers and types of atoms
expresses the types of atoms and the number of each type in e…
the mass of a substance produced by a chemical reaction is al…
Elements
made of tiny particles called atoms
compound
always has the same relative numbers and types of atoms
56 terms
Chapter 4 Chemistry Atoms
Dalton's strengths
Dalton's weaknesses
Billiard Ball model
Rutherford's 3 key ideas
atoms, whole number ratios
no isotopes and ions, atoms are divisable
Dalton's model
positive charge (opposites attract, negatives react) called p…
Dalton's strengths
atoms, whole number ratios
Dalton's weaknesses
no isotopes and ions, atoms are divisable
14 terms
Chemistry chapter 4: atoms
Atomic number
Mass number
Atomic mass
Atomic size
Number of protons
Number of protons+number of neutrons
Average atomic mass of a specific element
Distance of valence electrons from nucleus
Atomic number
Number of protons
Mass number
Number of protons+number of neutrons
40 terms
Chemistry-Chapter 4 Atoms
alkali metal
alkaline earth metal
atom
atomic mass
an element in group 1A, except hydrogen, that is a soft, shin…
an element in group 2A that has two electrons in its outermos…
the smallest particle of an element that retains the characte…
the weighted average mass of all the naturally occurring isot…
alkali metal
an element in group 1A, except hydrogen, that is a soft, shin…
alkaline earth metal
an element in group 2A that has two electrons in its outermos…
8 terms
Chemistry Chapter 4 Electrons in Atoms
electromagnetic spectrum
energy sublevels
electron configuration
electron-dot structure
includes all forms of electromagnetic radiation which vary in…
the energy levels contained within a principle energy level
the arrangement of electrons in an atom, which is prescribed…
consists of an element's symbol, representing the atomic nucl…
electromagnetic spectrum
includes all forms of electromagnetic radiation which vary in…
energy sublevels
the energy levels contained within a principle energy level
16 terms
Chapter 4 Chemistry: Atoms
n
l
s
p
principal quantum number.also the energy level
angular momentum
sphere; 2 electrons
hour glass; 3 orbitals, 6 electrons
n
principal quantum number.also the energy level
l
angular momentum
16 terms
Chemistry Chapter 4 Atoms
What is the smallest part of an elemen…
Democritus (Greek)
John Dalton ... Dalton's Atomic Theory
Size of an Atom
Atoms
Believed atoms were indivisible and indestructible
English ... Dalton's Atomic Theory ... 1) Elements are composed of…
5 x 10^-11 to 2 x 10^-10
What is the smallest part of an elemen…
Atoms
Democritus (Greek)
Believed atoms were indivisible and indestructible
21 terms
Chemistry Chapter 4 Atoms
Democritus's Atomic Philosophy
Dalton's Atomic Theory
What important change has occurred in…
What can atoms be broken down into?
He reasoned that atoms were indivisible and indestructible
Transformed Democritus' ideas on atoms into a scientific theory
The atoms are known to be divisible
Subatomic particles
Democritus's Atomic Philosophy
He reasoned that atoms were indivisible and indestructible
Dalton's Atomic Theory
Transformed Democritus' ideas on atoms into a scientific theory
15 terms
Chemistry: Chapter 4: atoms
If an atom absorbs the right amount of…
When the electron is at a higher state…
What must happen for the atoms to be a…
the electrons return to the lowest ene…
its electrons will jump from a lower energy level to a higher…
the atom is in an excited state
the atom must absorb energy
The atom will lose energy when...
If an atom absorbs the right amount of…
its electrons will jump from a lower energy level to a higher…
When the electron is at a higher state…
the atom is in an excited state
20 terms
Chemistry Chapter 4 - Atomic Structure
atom
atomic number
atomic mass
atomic mass unit
The smallest particle of an element that retains its identity…
The number of protons in the nucleus of an atom of an element…
The weighted average of the masses of the isotopes of an elem…
A unit of mass equal to one-twelfth the mass of a carbon-12 a…
atom
The smallest particle of an element that retains its identity…
atomic number
The number of protons in the nucleus of an atom of an element…
24 terms
Chemistry Chapter 4: Atoms and Elements
alkali metals
alkaline earth metals
atom
atomic mass unit (amu)
Elements of group 1A (1) except Hydrogen; soft shiny metals
Group 2A (2) elements
The smallest particle of an element that retains the characte…
A small mass unit used to describe the mass of very small par…
alkali metals
Elements of group 1A (1) except Hydrogen; soft shiny metals
alkaline earth metals
Group 2A (2) elements
8 terms
Chapter 4: Atoms
Atomic Number
Atomic Mass
atom
nucleus of atom
Number of protons in an atom
total mass of protons and neutrons
smallest unit of matter
center of an atom
Atomic Number
Number of protons in an atom
Atomic Mass
total mass of protons and neutrons
30 terms
Chemistry- Chapter 4: Atoms and Elements
alkali metals
alkaline earth metals
atom
atomic mass
elements of group 1A (1) except hydrogen; these are soft, shi…
group 2A (2) elements, which have two valence electrons
the smallest particle of an element that retains the characte…
the weighted average mass of all the naturally occurring isot…
alkali metals
elements of group 1A (1) except hydrogen; these are soft, shi…
alkaline earth metals
group 2A (2) elements, which have two valence electrons
15 terms
Chemistry - Atoms & Atomic Structure (ch.4)
Atom
Subatomic Particles
Proton
Atomic Number
1. The smallest unit of matter in any element. 2. The smalles…
1. Particles that are smaller than the atom. 2. Usually refer…
1. A positively (+) charged subatomic particle located in the…
A unique number for each element on the periodic table that i…
Atom
1. The smallest unit of matter in any element. 2. The smalles…
Subatomic Particles
1. Particles that are smaller than the atom. 2. Usually refer…
32 terms
Chemistry- Atoms and Atomic Theories- Chapter 4
Atoms
Dalton
False
True
tiny particles that make up matter
Who discovered the Atomic Theory
True/False... All elements are composed of indivisible particles…
True/False ... Atoms come together in specific whole number rati…
Atoms
tiny particles that make up matter
Dalton
Who discovered the Atomic Theory
86 terms
honors chemistry chapter 4- electrons in atoms
what is an electromagnetic wave
from what we know based on the planeta…
What do waves consist of
wavelength
light
they should attract
oscillating electric and magnetic fields that are perpendicul…
length of one complete wave
what is an electromagnetic wave
light
from what we know based on the planeta…
they should attract
21 terms
Chemistry Chapter 4 Atom Structure
Dalton's atomic theory
atom
cathode ray
electron
states that matter is composed of extremely small particles c…
the smallest particle of an element that retains all the prop…
radiation that originates from the cathode and travels to the…
a negatively charged, fast-moving particle with an extremely…
Dalton's atomic theory
states that matter is composed of extremely small particles c…
atom
the smallest particle of an element that retains all the prop…
17 terms
Chemistry Chapter 4: Electrons in Atoms
Maxwell Planck
Albert Einstein
Albert Einstein
Lymen
E=hv
Ephoton=hv
Dual wave-particle properties... 1) wavelike properties... 2) strea…
n not = 1... UV
Maxwell Planck
E=hv
Albert Einstein
Ephoton=hv
Chemistry- Chapter 4 Atoms and Elements
All matter is classified into...
Pure Substance
What type of matter is classified as p…
What type of matter is a blend of 2 or…
-Elements... -Compounds... -Mixtures
Only one type or kind of matter.
-Elements... -Compounds
Mixture
All matter is classified into...
-Elements... -Compounds... -Mixtures
Pure Substance
Only one type or kind of matter.
33 terms
Chemistry- Chapter 4 Atomic Structure
Democritus's Idea
Rutherfords explanation of atomic stru…
JJ Thomson's
Atoms, element
Atoms are indivisible and indestructible
Nucleus is small, dense, and positively charged (is the expli…
Whose Experiment proved atoms are neutral, electrons have ver…
________ of the same ________have the same number of protons…
Democritus's Idea
Atoms are indivisible and indestructible
Rutherfords explanation of atomic stru…
Nucleus is small, dense, and positively charged (is the expli…
26 terms
Chemistry Chapter 4: Atomic Structure
atom
electrons
neutrons
protons
the smallest particle of an element that retains its identity…
negatively charged subatomic particles located around the nuc…
subatomic particles with no charge and located in the nucleus
positively charged subatomic particles located in the nucleus
atom
the smallest particle of an element that retains its identity…
electrons
negatively charged subatomic particles located around the nuc…
61 terms
chemistry chapter 4: atomic structure
chemistry
matter
element
atom
study of matter and the changes it undergoes
anything that has mass, takes up space, and has volume
pure substance that cannot be broken down into simpler substa…
smallest part of an element that retains all the properties o…
chemistry
study of matter and the changes it undergoes
matter
anything that has mass, takes up space, and has volume
32 terms
Chemistry Chapter 4 Atomic Structure
Atoms
Democritus's Atomic Theory
Law of Conservation of Mass
Law of Definite Proportions
-fundamental building blocks of matter... -the smallest piece of…
discontinuous theory of matter
-matter cannot be created nor destroyed in an ordinary way... -A…
Joseph Proust: the proportions of mass in chemicals in reacti…
Atoms
-fundamental building blocks of matter... -the smallest piece of…
Democritus's Atomic Theory
discontinuous theory of matter
12 terms
Chemistry Chapter 4 Atom Structure
Dalton's atomic theory
atom
cathode ray
electron
states that matter is composed of extremely small particles c…
the smallest particle of an element that retains all the prop…
radiation that originates from the cathode and travels to the…
a negatively charged, fast-moving particle with an extremely…
Dalton's atomic theory
states that matter is composed of extremely small particles c…
atom
the smallest particle of an element that retains all the prop…
21 terms
Chemistry Chapter 4 Atom Structure
Dalton's atomic theory
atom
cathode ray
electron
states that matter is composed of extremely small particles c…
the smallest particle of an element that retains all the prop…
radiation that originates from the cathode and travels to the…
a negatively charged, fast-moving particle with an extremely…
Dalton's atomic theory
states that matter is composed of extremely small particles c…
atom
the smallest particle of an element that retains all the prop…
chemistry chapter 4 atoms etc
what are democritus' ideas?
Aristotle
Daltons atomic theory
atom
1. matter is composed of empty space through which atoms move…
1. one of the most influential philosophers ... 2. wrote extensi…
1. all matter is composed of extremely small particles called…
smallest particle of an element that retains the properties o…
what are democritus' ideas?
1. matter is composed of empty space through which atoms move…
Aristotle
1. one of the most influential philosophers ... 2. wrote extensi…
43 terms
Chemistry Chapter 4- Atomic Structure
Atom
Democritus (460 BC-370 BC)
John Dalton (1766-1844)
1. All elements are composed of tiny i…
The smallest particle of an element that retains its identity…
-Was among the first to suggest the existence of atoms (from…
-Transformed Democritus' ideas on atoms into a scientific the…
Dalton's Atomic Theory
Atom
The smallest particle of an element that retains its identity…
Democritus (460 BC-370 BC)
-Was among the first to suggest the existence of atoms (from…
19 terms
Chemistry Chapter 4 Atomic Structure
Atom
Democritus
Dalton's Atomic Theory
Scanning tunneling microscope
The smallest particle of an element that retains its identity…
Greek philosopher (460-370 BC) believed that atoms were indiv…
1) All elements are composed of tiny indivisible particles ca…
despite their small size, individual atoms are observable wit…
Atom
The smallest particle of an element that retains its identity…
Democritus
Greek philosopher (460-370 BC) believed that atoms were indiv…
15 terms
Conceptual Chemistry Chapter 4: The Atomic Nucleus WPHS
Alpha particle
Beta particle
Carbon-14 dating
Chain reaction
A subatomic particle consisting of the combination of two pro…
An electron emitted during the radioactive decay of a radioac…
The process of estimating the age of once-living material by…
A self-sustaining reaction in which the products of one react…
Alpha particle
A subatomic particle consisting of the combination of two pro…
Beta particle
An electron emitted during the radioactive decay of a radioac…
13 terms
Chemistry - Vocabulary Chapter 4 - Atomic Structure
Atom
Dalton's Atomic Theory
Electron
Cathode Ray
the smallest particle of an element that retains it's identit…
the first theory to relate chemical changes to events at the…
a negatively charged subatomic particle, found outside the nu…
a stream of electrons produced at the negative electrode (cat…
Atom
the smallest particle of an element that retains it's identit…
Dalton's Atomic Theory
the first theory to relate chemical changes to events at the…
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