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Atomic Theory
What particle did Rutherford discover?
What is the charge of an electron?
Atomic Theory
34 terms
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#atomictheory #ms.dunn
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Questions
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Answers
1
What is the charge of an electron?
no charge
negative
positive
2
What particle did Rutherford discover?
electrons
neutrons
protons
atoms
3
What is the charge of a neutron?
negative
no charge/ neutral
positive
4
What is the mass number?
12
24
6
25
5
Whose model was the atomic theory based off of?
Rutherford
Bohr
Dalton
thomson
6
How many electrons are there?
24
25
12
6
7
Who discovered electrons?
Bohr
Dalton
Rutherford
Thomson
8
What does the atomic mass tell us?
sum of protons and neutrons
number of protons and neutrons
sum of neutrons and electrons
sum of protons and electrons
9
What is the symbol of this element?
M
MG
Mg
mg
10
Where did Rutherford say protons were located?
outside of the 3rd shell
nucleus
around the nucleus
in shells
11
What is the best model that shows the most likely locations for elections in an atom.
bohr
rutherford
thomson
electron cloud
12
Who said the atom was a solid sphere?
Rutherford
Bohr
Thomson
Dalton
13
Where are the neutrons located?
nucleus
in the shells
around the nucleus
14
What model deals with electrons?
Rutherford
Bohr
Thomson
Daltons
15
How many electrons would be in the 3rd shell.
8
4
6
2
16
How many protons are there?
6
24
25
12
17
What is the charge of a proton?
positive
negative
no charge
18
True or False: Electron clouds let us know how electrons behave in their orbitals.
False
True
19
True or false: The mass of a neutron is almost always equal to the mass of a proton.
True
False
20
What two subatomic particles are always equal because they must balance each other out.
electrons and protons
electrons and neutrons
neutrons and protons
21
How many electrons can fit in the first energy level or shell of an atom.
8
2
18
32
22
Who thought positive particles were throughout an atom and electrons were scattered throughout?
Rutherford
Dalton
Thomson
Bohr
23
What is the atomic number for this element.
25
24
12
6
24
When can an electron in an atom can move from one energy level to another.
just loses energy
just gains energy
it cant
gains and loses energy
25
How many electrons are in the 3rd shell/ energy level of an atom.
8
18
32
2
26
What is the region of space around the nucleus where electrons are most likely to be found.
orbitals
ground state
electron cloud
energy levels
27
How many neutrons are there?
24
12
25
6
28
What is the arrangement of electrons in the orbitals of an atom.
ground state
orbitals
electron configuration
energy levels
29
Who revised Daltons atomic theory?
Dalton
Thomson
Rutherford
Bohr
30
What is the term for the possible energies that electrons in an atom can have?
energy levels
electron cloud model
orbitals
ground state
31
When an atom has the lowest possible energies it is in what state?
excited state
ground state
32
True of false: An atom is neutral
True
False
33
What does the atomic number tell us?
number of protons and neutrons
number of neutrons and electrons
the mass
number of protons and electrons
34
Which of the following is not a subatomic particle?
proton
atom
electron
neutron
