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Study sets matching "chemistry elements atoms"

13 terms
Chemistry 2 Atoms and Elements
Atom
Compound
Electron
Proton
Smallest unit of an element with all the properties of that e…
Two more elements joined to make new substance
Subatomic particle with negative charge found outside the nuc…
Subatomic particle with positive charge found in the nucleus…
Atom
Smallest unit of an element with all the properties of that e…
Compound
Two more elements joined to make new substance
29 terms
Chemistry: atoms and elements
periods
groups
elements
mixtures
horizontal rows on the periodic table, physical and chemical…
aka families, vertical columns on the periodic table, contain…
pure substances that can not be broken down chemically
two or more substances that are not chemically combined and c…
periods
horizontal rows on the periodic table, physical and chemical…
groups
aka families, vertical columns on the periodic table, contain…
16 terms
Chemistry: Atoms & Elements
There are small, negatively (-) charge…
There is a small, dense, positively (+…
Most of an atom's mass is in its nucle…
Electrons jump between levels from pat…
Thomson
Rutherford
Rutherford
Bohr
There are small, negatively (-) charge…
Thomson
There is a small, dense, positively (+…
Rutherford
57 terms
Chemistry atoms & elements
The atomic Theory... (Dalton)
Nuclear theory of the atom... (rutherford)
How much mass does the nucleus make up…
Atomic number
1. Each element is composed of tiny indestructible particles…
1. Most of the atom's mass and all of its positive charge are…
nucleus makes up 99% of mass... but occupies only a small fract…
the # of protons in the nucleus of an atom. Represented by th…
The atomic Theory... (Dalton)
1. Each element is composed of tiny indestructible particles…
Nuclear theory of the atom... (rutherford)
1. Most of the atom's mass and all of its positive charge are…
9 terms
Chemistry - Atoms, elements and compounds
Atomic structure
Periodic Table
Bonds
Ions
Electron on outer shell, neutron and proton in center, nuclei.
A table that shows the elements, their atomic number, symbol,…
Forces holding particles together.
Atoms with a charge
Atomic structure
Electron on outer shell, neutron and proton in center, nuclei.
Periodic Table
A table that shows the elements, their atomic number, symbol,…
23 terms
Atoms, Elements, and Nuclear Chemistry
Organization of the Periodic Table
Groups
Periods
Metals
Vertical columns; elements are similar because they have the…
Horizontal rows.
Conductors, malleable, form positive ions (cations).
Organization of the Periodic Table
Groups
Vertical columns; elements are similar because they have the…
17 terms
Chemistry - Atoms, Elements and Compounds
Ion
Molecule
Atom
Element
An atom with a charge.
The simplest structural unit for an element or compound.
The smallest uncharged particle that can take part in a chemi…
A substance made up of only one type of atom.
Ion
An atom with a charge.
Molecule
The simplest structural unit for an element or compound.
13 terms
Chemistry: Atoms, elements and compounds
What is an atom?
How are compounds formed by elements?
What do chemical reactions involve?
What is a compound?
The smallest part of an element that can exist
They are formed by chemical reactions
The formation of one or more new substances , often with a de…
A substance made of two or more elements chemically combined…
What is an atom?
The smallest part of an element that can exist
How are compounds formed by elements?
They are formed by chemical reactions
5 terms
Chemistry atoms and elements
Aatoms contain positiveley charged pro…
It's a substance that only contains on…
12 an atom has the same number of prot…
An atom has a nucleus in the centre th…
Name the different particles in an atom and give their changes
What is an element
If an atom has 12 protons how many electrons will it have
Describe the structure of an atom
Aatoms contain positiveley charged pro…
Name the different particles in an atom and give their changes
It's a substance that only contains on…
What is an element
16 terms
Chemistry of life - Atoms and Elements
MATTER
CHEMISTRY
ATOM
SUBATOMIC PARTICLES
Anything that has mass and occupies space. Solid, liquid or g…
Study of matter and its interactions.
Smallest unit of matter that still retains its original prope…
3 basic smaller parts within an atom.
MATTER
Anything that has mass and occupies space. Solid, liquid or g…
CHEMISTRY
Study of matter and its interactions.
11 terms
Chemistry - Atoms, Elements and Compounds
Ion
Atom
Element
Compound
An atom with a charge.
The smallest uncharged particle that can take part in a chemi…
A substance made up of only one type of atom.
A substance made up of two or more different types of atom jo…
Ion
An atom with a charge.
Atom
The smallest uncharged particle that can take part in a chemi…
54 terms
Chemistry: Atoms and Elements
Vocab: Nucleus
Vocab: Neutron
Vocab: Proton
Vocab: Electron
In the nucleus there are the protons and the neutrons. The nu…
In the nucleus and have a neutral charge.
In the nucleus and have a positive (+) charge.
Surrounding the nucleus (shells). They have a negative charge…
Vocab: Nucleus
In the nucleus there are the protons and the neutrons. The nu…
Vocab: Neutron
In the nucleus and have a neutral charge.
Chemistry: Elements and atoms- atomic structure
Increasing atomic number
#protons + #neutrons
Isotopes
Mass number - #protons
The elements in the periodic table are arranged in order of__…
Mass number=
Different number of neutrons are called_____.
#neutrons=
Increasing atomic number
The elements in the periodic table are arranged in order of__…
#protons + #neutrons
Mass number=
12 terms
Chemistry Elements & Atoms
atom
isotope
ion
electron
smallest particle on element that retains its identity in che…
atoms that have same # of protons (same element) but have dif…
atom/group of atoms that have +/- charge
Symbol: e-, located outside nucleus, atomic mass unit: 0, cha…
atom
smallest particle on element that retains its identity in che…
isotope
atoms that have same # of protons (same element) but have dif…
Chemistry: Atoms, Elements and Matter
matter
atoms
molecules
solid
anything that occupies space and has mass
tiny particles too small to see that makes up matter
two or more atoms joined to one another in specific geometric…
atoms or molecules pack close to each other in fixed locations
matter
anything that occupies space and has mass
atoms
tiny particles too small to see that makes up matter
47 terms
Chemistry Atoms and Elements Quiz
he had no experiment. (it was philosop…
first recorded the idea that there is…
name of his model was atom
his experiment was the solubility of g…
democritus
democritus
democritus
john dalton
he had no experiment. (it was philosop…
democritus
first recorded the idea that there is…
democritus
30 terms
Chemistry- Elements/Atoms
The law of the conversion of mass
Transformation of a substance to a new…
Law of definite proportions
A new substance
The law that cannot be destroyed
Chemical change
Law that chemical compound contains same element in the same…
2 elements can combine to make what?
The law of the conversion of mass
The law that cannot be destroyed
Transformation of a substance to a new…
Chemical change
19 terms
Chemistry chapter 2 : Atoms and Elements
Three laws of the Atomic Modern Theory
Law of conservation of mass
Law of definite proportions
Law of multiple proportions
1. Law of conservation of mass... 2. Law of definite proportions…
In a chemical reaction, matter is neither created nor destroy…
All samples of a given compound, regardless of their source o…
When two elements (A and B) form two different compounds, the…
Three laws of the Atomic Modern Theory
1. Law of conservation of mass... 2. Law of definite proportions…
Law of conservation of mass
In a chemical reaction, matter is neither created nor destroy…
22 terms
Chemistry Atoms and Elements Quiz
Where to find mass number
Where to find atomic number
Since atom are neutral protons=?
Ion
Upper left of symbol
Lower left corner of symbol
Electrons
Charged particle
Where to find mass number
Upper left of symbol
Where to find atomic number
Lower left corner of symbol
10 terms
Chemistry revision elements and atoms
Element
Atoms
How many atoms?
Solids
An element is a pure substance that can't be broken down into…
Atoms are the building blocks from which every substance is m…
There are 98 naturally occurring atoms.
Atoms in a solid are tightly packed together in rows and laye…
Element
An element is a pure substance that can't be broken down into…
Atoms
Atoms are the building blocks from which every substance is m…
8 terms
Core Chemistry: Atoms & Elements
Define Element
What are the subatomic particles of an…
Where are the subatomic particles found?
What charge do each of the subatomic p…
A pure substance made up of only one type of atom
>Protons... >Neutrons... >Electrons
>NUCLEUS: Protons & Neutrons... >SHELLS: Electrons
>Protons +1... >Neutrons 0 (no charge)... >Electrons -1
Define Element
A pure substance made up of only one type of atom
What are the subatomic particles of an…
>Protons... >Neutrons... >Electrons
16 terms
CHEMISTRY - Atoms and Elements
What's an element?
What's a diatomic molecule?
In the Periodic Table what is a group?
In the Periodic Table what is a period?
A substance which cannot be broken down into a simpler form
Elements where the atoms come in pairs eg: HH, OO, NN
A vertical column on the periodic table
A row of elements on the periodic table
What's an element?
A substance which cannot be broken down into a simpler form
What's a diatomic molecule?
Elements where the atoms come in pairs eg: HH, OO, NN
14 terms
Chemistry CH 3 - Atoms and Elements
compound
mixture
molecule
element
a substance formed by the chemical union of 2 or more elements
2 or more substances that are NOT joined chemically
the smallest physical unit of a substance that can exist inde…
any substance that cannot be broken down into a simpler subst…
compound
a substance formed by the chemical union of 2 or more elements
mixture
2 or more substances that are NOT joined chemically
22 terms
Chemistry - Atoms and elements
What is the charge of a proton?
What is the charge of a neutron?
What is the charge of an electron?
What are the elements in group 0 from…
+1 (positive)
0 (no charge)
-1 (negative)
Noble gases (helium, neon, argon, krypton, xenon, radon)
What is the charge of a proton?
+1 (positive)
What is the charge of a neutron?
0 (no charge)
8 terms
Chemistry- atoms, elements and compounds
Element
Element
Elements
Atom
A substance containing only 1 type of atom
Cannot be broken down into a simpler substance
All are listed on the periodic table
The smaller particle to make up an element
Element
A substance containing only 1 type of atom
Element
Cannot be broken down into a simpler substance
48 terms
Chemistry: Atoms and Elements
What did Democritus contribute to our…
Describe Rutherford's gold foil experi…
List the three subatomic particles and…
Is matter usually charge-neutral? How…
The theory that matter was ultimately composed of small, indi…
Rutherford's gold foil experiment involved sending positively…
Proton... mass: 1.67262X10^-27kg OR 1 amu... charge: +1... Neutron…
Yes. If matter was not normally charge-neutral, many unnatura…
What did Democritus contribute to our…
The theory that matter was ultimately composed of small, indi…
Describe Rutherford's gold foil experi…
Rutherford's gold foil experiment involved sending positively…
23 terms
Chemistry-Atoms and Elements
What is the density equation?
atoms
About how many elements are found in n…
What did Democritus contribute?
D=m/v
incredibly small pieces of elements
92
He said that atoms were the smallest particles and that they…
What is the density equation?
D=m/v
atoms
incredibly small pieces of elements
10 terms
Atoms, Periodic table of elements and Chemistry
electron
atomic mass number
valence electron
covalent bond
electron
atomic mass number
8 terms
Chemistry Atoms, Elements and compounds
atom
element
compound
molecule
Smallest particle that can exist on its own
substance made up of only one type of atom
substance made up of two or more different elements that are…
two or more atoms that are chemically joined
atom
Smallest particle that can exist on its own
element
substance made up of only one type of atom
12 terms
Chemistry Chap. 1, Sec. 1 "Elements and Atoms"
Matter
Element
Compound
Mixture
anything that has mass and takes up space.
the simplest pure substance that cannot be broken down into a…
a pure substance made of two or more elements that are combin…
two or more substances (elements, compounds, or both) that ar…
Matter
anything that has mass and takes up space.
Element
the simplest pure substance that cannot be broken down into a…
16 terms
Chemistry atoms elements and compounds
What does the arrangement of electrons…
What is the electron arrangement for t…
What is the maximum amount of electron…
What happens if atoms gain electrons?
The chemical properties in an element
Electrons are arranged in shells at different distances aroun…
8
It becomes a negatively charged ion
What does the arrangement of electrons…
The chemical properties in an element
What is the electron arrangement for t…
Electrons are arranged in shells at different distances aroun…
20 terms
Chemistry: Atoms and Elements
Atom
Element
Atomic Theory of John Dalton
JJ Thompson
-compose matter ... -smallest identifiable unit of an element ... -…
-substances that cannot be broken down into simpler substance…
1. each element is composed of tiny, indestructible particles…
discovered:... -electrons ... -that electrons have a negative charg…
Atom
-compose matter ... -smallest identifiable unit of an element ... -…
Element
-substances that cannot be broken down into simpler substance…
27 terms
Chemistry Atoms and Elements
Elements
Mercury
3 ways Mercury can enter the body
Macrominerals
pure substances from which all other things are built. they c…
a very shiny, silvery element that is liquid at room temperat…
inhaled mercury vapor, contact with the skin, indigestion of…
elements involved in the formation of bones and teeth, mainte…
Elements
pure substances from which all other things are built. they c…
Mercury
a very shiny, silvery element that is liquid at room temperat…
45 terms
Chemistry Elements + Polyatomic Atoms
Hydrogen
Helium
Lithium
Beryllium
H
He
Li
Be
Hydrogen
H
Helium
He
13 terms
Chemistry: Basics: Atoms & Elements
Atoms
Subatomic Particles
Protons
Neutrons
All matter is made from these basic building blocks
Atoms themselves are made from these 3 particles: Protons, Ne…
Located in the middle of the atom, it is heavy and positively…
Located in the middle of the atom, it is about as heavy as a…
Atoms
All matter is made from these basic building blocks
Subatomic Particles
Atoms themselves are made from these 3 particles: Protons, Ne…
11 terms
Chemistry Elements, Atoms & Ions
element
element symbol
periodic table
metals
118 current in the Periodic Table... 92 occur naturally
1st letter: ALWAYS capitalized ... 2nd letter: ALWAYS lowercased…
Dimitri Mendeleev discovered it ... organized by increasing atom…
located left of stair-step ... characteristics:... efficient conduc…
element
118 current in the Periodic Table... 92 occur naturally
element symbol
1st letter: ALWAYS capitalized ... 2nd letter: ALWAYS lowercased…
38 terms
Chemistry: History, Atom, Elements
Democritus
Aristotle
John Dalton
J.J Thomson
said matter is made up of tiny particles, indivisible and ind…
everything consisted of basic elements (earth, water, air, fi…
English; did experiments based on democ. ... 1. All elements con…
English; cathode raytube. Beam from negative cathode to posit…
Democritus
said matter is made up of tiny particles, indivisible and ind…
Aristotle
everything consisted of basic elements (earth, water, air, fi…
17 terms
chemistry vocab atoms and elements
periodic table
nuclear theory of the atom
atomic mass unit
atomic number
organized chart of the elements
theory that states in part that most of the volume of the ato…
one-twelfth of the mass of a carbon atom containing six proto…
number of protons in the nucleus of anatom
periodic table
organized chart of the elements
nuclear theory of the atom
theory that states in part that most of the volume of the ato…
9 terms
Chemistry - Atoms and Elements
Structure, mass and charges of an atom
Atomic Number
Mass Number
Metals
Protons - Mass is 1 amu, positive charge, found in nucleus... Ne…
The atomic number is the number of protons, this is given by…
The mass number of an atom is the number of protons + the num…
The metals are good at losing electrons, but they are poor at…
Structure, mass and charges of an atom
Protons - Mass is 1 amu, positive charge, found in nucleus... Ne…
Atomic Number
The atomic number is the number of protons, this is given by…
Chemistry: Atoms, Elements, Properties of Matter
matter
atom
element
density
material that has mass and takes up some amount of space... Key…
the smallest unit of an element that has the properties of th…
a pure substance that cannot be broken down into simpler subs…
an object's mass divided by its volume; a measure of how many…
matter
material that has mass and takes up some amount of space... Key…
atom
the smallest unit of an element that has the properties of th…
40 terms
Chemistry (Atoms/Elements)
Neutron
Proton
Electron
Positive Ion
Part of atom that has a neutral charge, in nucleus
Part of atom that has positive charge, in nucleus
Part of atom on shells in Electron Cloud that has negative ch…
Has more positives than negatives
Neutron
Part of atom that has a neutral charge, in nucleus
Proton
Part of atom that has positive charge, in nucleus
10 terms
Chemistry: Atoms and Elements
Atom
Subatomic particles
Isotope
Ion
Smallest particle of an element that retains its identity in…
Particles much smaller than atoms such as; protons, neutron,…
Variation of an element but can have different numbers of neu…
An atom or groups of atoms that has a positive or negative ch…
Atom
Smallest particle of an element that retains its identity in…
Subatomic particles
Particles much smaller than atoms such as; protons, neutron,…
14 terms
chemistry; atoms and elements
the middle of the atom is called
the nucleus contains
protons have what charge
neutrons have what charge
the nucleus
protons and neutrons
positive charge
no charge
the middle of the atom is called
the nucleus
the nucleus contains
protons and neutrons
36 terms
Chemistry Formula, Atoms & Elements
Water (Formula)
Water (Elements Present)
Water (Number of Atoms)
Carbon Dioxide (Formula)
H2O
Hydrogen & Oxygen
3
CO2
Water (Formula)
H2O
Water (Elements Present)
Hydrogen & Oxygen
27 terms
Atoms and Elements -Chemistry
Elements
Chemical Symbols
Period
Group
Pure substances from which all other things are built
one-or-two letter abbreviations for the names of the elements
Each horizontal row in the periodic table
Each vertical row in the periodic table
Elements
Pure substances from which all other things are built
Chemical Symbols
one-or-two letter abbreviations for the names of the elements
10 terms
Chemistry - Atoms and Elements
Compound
Mixture
Ways to separate Mixtures
How is a compound formed ?
Chemicals made from atoms of different elements joined by che…
They are made from molecules of elements and compounds that a…
Mixtures can be separated using techniques such as filtration…
Atoms of different elements can join together in chemical rea…
Compound
Chemicals made from atoms of different elements joined by che…
Mixture
They are made from molecules of elements and compounds that a…
32 terms
7PB Chemistry Atoms and Elements
Atom
Atomic number
Electron
Protons
Simplest particle found in matter
The number of electrons or protons in an atom
Negatively charged, hangs around the outside of an atom
Positively charged, lives in the nucleus
Atom
Simplest particle found in matter
Atomic number
The number of electrons or protons in an atom
Chemistry: Atoms and Elements
Proton's Location
Proton's Charge
How to Calculate Protons
Changing the # of Protons makes _____
In the nucleus
Positive
Atomic #
A new element
Proton's Location
In the nucleus
Proton's Charge
Positive
11 terms
Chemistry - Elements and atoms (theory)
Elemental molecule
Chemical formula
Subscript
Coefficient
It consists of at least two atoms of the same element that ar…
It expresses the composition of molecule
It's a little number after the chemical symbol in a chemical…
It's written before the chemical formula and it shows the num…
Elemental molecule
It consists of at least two atoms of the same element that ar…
Chemical formula
It expresses the composition of molecule
10 terms
Chemistry - Atomic Structure of Elements
atom
element
proton
neutron
smallest particle of matter that cannot be divided any further
group of the same atoms
part of the atom with a positive charge; found in the nucleus
part of the atom with no charge; found in the nucleus
atom
smallest particle of matter that cannot be divided any further
element
group of the same atoms
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