Study sets matching "chemistry elements atoms"

Study sets
Classes
Users

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
12 terms
Chemistry Atoms and Elements
Chemical Reaction
Atoms
Molecules
Elements
Is when matter is mixed and something new is made.
The smallest pieces of matter that cannot be cut apart.
This is made of more than one atom. Sometimes the same (O2) a…
The different kinds of atoms that make all matter.
Chemical Reaction
Is when matter is mixed and something new is made.
Atoms
The smallest pieces of matter that cannot be cut apart.
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…
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.
6 terms
Chemistry Atoms and Elements
atom
element
molecule
compound
原子
元素
分子
复合
atom
原子
element
元素
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…
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…
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,…
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.
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
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
Chemistry: Atoms, Elements and Compounds
Molecule
Isotopes
Intermolecular forces
Giant covalent lattices
A small particle made from a few non-metal atoms bonded toget…
Atoms with the same proton number but different nucleon number
These break when a substance melts
A crystal made of repeating patterents of atoms joined with c…
Molecule
A small particle made from a few non-metal atoms bonded toget…
Isotopes
Atoms with the same proton number but different nucleon number
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
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
Chemistry test atoms and elements
T/F- The atomic number of nitrogen is…
T/F- J.J Thomson discovered the existe…
T/F- The number of protons in an atom'…
T/F- All of the positive charge of and…
false
false
true
true
T/F- The atomic number of nitrogen is…
false
T/F- J.J Thomson discovered the existe…
false
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 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…
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…
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
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
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
45 terms
Chemistry Elements + Polyatomic Atoms
Hydrogen
Helium
Lithium
Beryllium
H
He
Li
Be
Hydrogen
H
Helium
He
Chemistry Chapter 2: Atoms and Elements
Law of Conservation of mass
Law of Definite Proportions
Law of Multiple Proportions
Dalton's Atomic Theory
states that in a chemical reaction, matter is neither created…
all samples of a given compound are consistently the same
When two elements form two different compounds, the masses of…
All atoms of a given element have the same mass and other pro…
Law of Conservation of mass
states that in a chemical reaction, matter is neither created…
Law of Definite Proportions
all samples of a given compound are consistently the same
Chemistry - atoms, elements etc.
Periodic Table
Elements
Atom
Compounds
A list of all elements
A substance with only one type of atom
The smallest particles which substances can be broken down to.
Made of more than one type of atom. Bonded together
Periodic Table
A list of all elements
Elements
A substance with only one type of atom
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…
Chemistry Vocabulary Atoms and Elements
Neutron
Alpha Particle
Element
Half-life
A natural, subatomic particle in an atom's nucleus that has a…
A particle with two protons and two neutrons with a 2+ charge…
A pure substance that cannot be broken down into simpler subs…
The time required for one-half of a radioisotope's nuclei to…
Neutron
A natural, subatomic particle in an atom's nucleus that has a…
Alpha Particle
A particle with two protons and two neutrons with a 2+ charge…
Chemistry Elements and Atoms
Electron
Shells
Relative Atomic mass
Mass & Electrical Charge
They should always have the same amount of atoms. Their mass…
They orbit the nucleus and have electrons in them
If proton and neutron added together, it creates a result.
The two properties of subatomic particles that are especially…
Electron
They should always have the same amount of atoms. Their mass…
Shells
They orbit the nucleus and have electrons in them
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…
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,…
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
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…
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
Chemistry: atoms and elements
Pure
Mercury
Groups
Atom
When something is made up of one atom
The only metal that is a liquid at room temperature.
The vertical columns on the periodic table.
What everything is made up of.
Pure
When something is made up of one atom
Mercury
The only metal that is a liquid at room temperature.
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=
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
Atoms, elements and compounds (CHEMISTRY )
Atom
Molecule
Element
Compound
The smallest part of an element
A group of two or more atoms chemically joined together
A substance made up of only one type of atom
A substance made up of two or more types of atoms chemically…
Atom
The smallest part of an element
Molecule
A group of two or more atoms chemically joined together
15 terms
atoms, elements and chemistry
the 2 subatomic particles that have a…
covalent bonds are non metals or metals
do all atoms want to have a full shell
when there is a covalent bond does tha…
protons, neutrons
non metals
yes
yes
the 2 subatomic particles that have a…
protons, neutrons
covalent bonds are non metals or metals
non metals
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…
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…
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…
24 terms
Atoms and Elements AP Chemistry
Empedocles
Democritus
John Dalton
JJ Thomson
All matter composed of 4 elements.
All matter is divisible into invisible particles (atoms)
Atomic Theory - Predicted the existence of the law of multipl…
Discovered electrons with the use of a gas discharge tube to…
Empedocles
All matter composed of 4 elements.
Democritus
All matter is divisible into invisible particles (atoms)
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
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
45 terms
chemistry elements and atomic symbols
aluminum
argon
arsenic
barium
Al
Ar
As
Ba
aluminum
Al
argon
Ar
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)
17 terms
CHEMISTRY ATOMS + ELEMENTS
What is an Atom?
What are the components of an atom?
How many atoms does an element contain?
What is the nucleus?
Smallest particle of matter, can not be broken down further b…
Nucleus and a cloud of electrons around it
One.
A cluster of protons and neutrons
What is an Atom?
Smallest particle of matter, can not be broken down further b…
What are the components of an atom?
Nucleus and a cloud of electrons around it
1 of 10