Study sets matching "atoms chemistry chapter 4"

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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
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
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
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
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
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- 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
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…
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…
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…
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
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…
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
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…
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
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
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…
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
17 terms
Chemistry EOC Chapter 4+8 Atoms and Stoichiometry
atom
atomic mass
atomic mass unit (AMU):
atomic number
The smallest part of an element that still has the identity o…
The mass of an atom, usually described in atomic mass units (…
1/12th the mass of a Carbon atom which helps to determine the…
Refers to the number of protons in an atom, which is unique t…
atom
The smallest part of an element that still has the identity o…
atomic mass
The mass of an atom, usually described in atomic mass units (…
Chemistry: Atoms First Chapter 4
Dmitri Mendeleev & Lothar Meyer
Groups 1B through 8B
isoelectronic series
atomic radius trends
-independently came to the same conclusion about how elements…
transition metal groups
a series that has two or more species that have identical ele…
atomic radius decreases moving from left to right across a pe…
Dmitri Mendeleev & Lothar Meyer
-independently came to the same conclusion about how elements…
Groups 1B through 8B
transition metal groups
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
Chemistry Chapter 4-5: Atoms
Atom
Democritus
4 elements of Daltons theory
Thomson
Smallest particle of an element that retains its identity in…
Believed that atoms are indivisible and indestructible. First…
First to prove that all matter is made of atoms... 1. All elemen…
Discovered electrons. Plum pudding model. Cathode ray. Proved…
Atom
Smallest particle of an element that retains its identity in…
Democritus
Believed that atoms are indivisible and indestructible. First…
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 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
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
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
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 - 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…
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 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…
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 - 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…
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 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…
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
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…
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
Chemistry Chapter 4 (structure of atoms)
Democritus
Aristotle
Dalton's Atomic Theory
Compare and contrast mass # and atomic #
• matter is composed of empty space through which atoms move…
• one of most influential philosophers... • wrote extensively on…
• all matter is composed of atoms... • all atoms of the same ele…
Compare: both include # of protons... Contrast: mass # is proton…
Democritus
• matter is composed of empty space through which atoms move…
Aristotle
• one of most influential philosophers... • wrote extensively on…
12 terms
Chemistry Chapter 4 - Electrons in Atoms
Electromagnetic Spectrum
C.O.A.T.
1nm=?m
Photon absorbed
ROYGBV
crest, origin, amplitude, trough
1x10^9nm = 1m
electron moves up in orbit
Electromagnetic Spectrum
ROYGBV
C.O.A.T.
crest, origin, amplitude, trough
Chemistry Chapter 4: Spectra of Atoms
heating them, giving off light
sodium - yellow orange light
Neon - red light
lavender - light
Atoms may be excited by ___________ in a flame or in an elect…
Na
Ne
H
heating them, giving off light
Atoms may be excited by ___________ in a flame or in an elect…
sodium - yellow orange light
Na
Chemistry Chapter 4 Electrons in Atoms
Electromagnetic spectrum
Relationship between frequency, wavele…
Dual wave or particle nature
continuous spectrum
forms of electromagnetic radiation... major regions - x -rays... u…
frequency and wavelength are inversely proportional... (c = v *…
light is a kind of electromagnetic radiation or energy wave…
every color and frequency shows
Electromagnetic spectrum
forms of electromagnetic radiation... major regions - x -rays... u…
Relationship between frequency, wavele…
frequency and wavelength are inversely proportional... (c = v *…
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…
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
chemistry- chapter 4 electrons in atoms
wave length
Frequency
Amplitude
Highest energy
Length of 1 complete wave
# of waves that pass a point during a certain time period ... (h…
Distance from the origin to the through or crest
Violet
wave length
Length of 1 complete wave
Frequency
# of waves that pass a point during a certain time period ... (h…
Chemistry - The Structure of the Atom, Chapter 4
Greek philosophers
Democritus
Aristotle
John Dalton(atomic theory)
The first to try to explain why chemical changes occur
(460-379 B.C.) 1) matter is composed of atoms, which move thr…
1) Empty space cannot exist ... 2) Matter is made of earth, fire…
1) Elements are made of thing particles called atoms... 2) All a…
Greek philosophers
The first to try to explain why chemical changes occur
Democritus
(460-379 B.C.) 1) matter is composed of atoms, which move thr…
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