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12/17/25: QUIZ for Atomic Model Project

Total questions: 38

Worksheet time: 28mins

Name
Class
Date
1.

How do you find the number of neutrons in an atom?

4 lines
2.

Explain HOW an atom is neutral even though it has protons, electrons, and neutrons in it. *Make sure to include the charges of the subatomic particles in your answer.

4 lines
3.
Which particle(s) are in the nucleus of an atom? *Select all that apply
a)
proton
b)
neutron
c)
atom
d)
energy level
e)
nucleus
4.
Which particle(s) surround the nucleus in energy levels? *Select all that apply
a)
electron
b)
atom
c)
proton
d)
energy level
e)
neutron
5.
Which particle(s) have a mass of 1 amu? *Select all that apply
a)
protons
b)
electrons
c)
neutrons
d)
atoms
e)
energy levels
6.
What do you look at to find protons?
a)
atomic number
b)
atomic mass
c)
group number
d)
period number
7.

Which particle ALWAYS "tells the truth" and can be used to identify an atom?

a)

proton

b)

electron

c)

neutron

d)

nucleus

e)

atom

8.
What do you look at to find electrons?
a)
number of protons
b)
number of neutrons
c)
atomic mass
d)
group number
e)
period number
9.

An atom of which element is shown in this picture?

*HINT: Which particle do you use to identify atoms?

a)

helium

b)

carbon

c)

boron

d)

sodium

10.
_______ is anything that has mass and volume.
a)
energy
b)
light
c)
matter
d)
radiation
11.

Silver is a(n)...

a)
mixture
b)
element
c)
compound
12.
Tiny, neutral unit of matter that cannot be broken down without changing its properties.
a)
proton
b)
electron
c)
neutron
d)
nucleus
e)
atom
13.
What is the most accurate model of an atom?
a)
Nuclear Model
b)
Bohr's Model
c)
Electron Cloud Model
d)
Solid Sphere Model
14.
Which model is useful for drawing atoms because of the clear arrangement of electrons on energy levels?
a)
Nuclear Model
b)
Bohr's Model
c)
Electron Cloud Model
d)
Solid Sphere Model
15.
Which of the following determine the structure of an atom? *Select all that apply
a)
charge
b)
location
c)
electrons
d)
protons
e)
neutrons
16.
Why are electrons attracted to the nucleus?
a)
Because protons are positive and electrons are negative and they need to cancel out.
b)
Because protons are negative and electrons are positive and they need to cancel out.
c)
Because the nucleus is positive and electrons are negative so the electrons are attracted to the nucleus.
d)
Because the nucleus is negative and electrons are positive so the electrons are attracted to the nucleus
17.

Like charges ​ (a)   , and opposite charges ​ (b)   .

Choose from the below words
repel (opposite)
attract (like)
combine (like)
repel (like)
attract (opposite)
combine (opposite)
18.
Which particle(s) mass doesn't count towards the mass of the entire atom because they have 0 amu's? *Select all that apply
a)
protons
b)
electrons
c)
neutrons
d)
atoms
e)
energy levels
19.
TRUE/FALSE Electrons have no mass at all.
a)
True
b)
False
20.

If an atom has 12 protons & 13 neutrons, what is the mass of the atom in Atomic Mass Units? *Type JUST the number : )

(a)  

21.

If an atom has 75 protons & 87 neutrons, what is the mass of the atom in Atomic Mass Units? *Type JUST the number : )

(a)  

22.

How many electrons can fit on the 1st energy level? *Type JUST the number : )

(a)  

23.

How many electrons can fit on the 2nd & 3rd energy levels? *Type JUST the number : )

(a)  

24.

Anything that is "very dense" has MORE ​ (a)   than ​ (b)   .

Choose from the below words
volume (MORE)
mass (LESS)
weight (MORE)
mass (MORE)
volume (LESS)
weight (LESS)
25.

Approximately what percentage of the volume of an atom is the nucleus? *Type JUST the number

(a)  

26.

Approximately what percentage of the volume of an atom is the electron cloud? *Type JUST the number

(a)  

27.
TRUE/FALSE Most of the atom is empty space.
a)
True
b)
False
28.
Where does the mass of the atom come from? *Select all that apply
a)
protons
b)
electrons
c)
neutrons
d)
atoms
e)
energy levels
29.

ANION's have a ​ (a)   charge and CATION's have a ​ (b)   charge.

Choose from the below words
positive (anion)
negative (anion)
neutral (anion)
neutral (cation)
negative (cation)
positive (cation)
30.
If an atom has more electrons than protons, what charge will the ion have?
a)
positive
b)
negative
c)
neutral
31.
If an atom has more protons than electrons, what charge will the ion have?
a)
positive
b)
negative
c)
neutral
32.

How are electrons placed on energy levels 2 & 3?

a)

only 2 electrons go on top

b)

up to 8 electrons are placed in pairs

c)

up to 8 electrons are placed one at a time in a clockwise pattern

d)

up to 2 electrons are placed one at a time in a clockwise pattern

e)

only 8 electrons are placed all spread out

33.

How are electrons placed on the FIRST energy level?

a)

only 2 electrons go on top

b)

up to 8 electrons are placed in pairs

c)

up to 8 electrons are placed one at a time in a clockwise pattern

d)

up to 2 electrons are placed one at a time in a clockwise pattern

e)

only 8 electrons are placed all spread out

34.

If an atom has 15 electrons total, how many BONDING SITES (unpaired electrons) will it have? *TYPE JUST THE NUMBER

*HINT: Draw the energy levels (not protons & electrons) and place the electrons how they should be.

(a)  

35.

Label the parts of an atom.

a)Electron Orbit
b)Electron
c)Neutron
d)Proton
e)Nucleus
1
2
3
4
5
1)
2)
3)
4)
5)
36.

Zirconium has how many Protons?

37.

How many electrons are there in Boron? ​ (a)  

Choose from the below words
6
5
1
11
38.

Protons and Electrons = ​ (a)  

Neutrons = ​ ​ (b)  

Choose from the below words
86
136

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