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WorksheetsAtomic Structure Review
Total questions: 25
Worksheet time: 22mins
Name
Class
Date
1.
Formula for finding neutrons:
a)
Protons + electrons
b)
Atomic Mass - Atomic #
c)
Neutrons - mass
d)
Electron Cloud Weight
2.
Which particle has a positive charge?
a)
electron
b)
orbital
c)
proton
d)
neutron
3.
Choose the particle that has no charge.
a)
nucleus
b)
neutron
c)
proton
d)
electron
4.
An electron has a _____ charge.
a)
negative
b)
positive
c)
neutral
5.
Describe an Electron Cloud?
a)
the mist outside of an atom
b)
home of the protons
c)
where electrons are located
d)
nucleus
6.
What are the maximum number of electrons that go on the first 3 energy levels?
a)
2,4,16
b)
2,8, 8
c)
4,8,12
d)
3,4,6
7.
The particles of the atom you can find by knowing the atomic number.
a)
neutrons
b)
protons and electrons
c)
protons and neutrons
d)
atomic mass
8.
Which particles make up the nucleus of an atom?
a)
protons and neutrons
b)
electrons and protons
c)
electrons, protons, and neutrons
d)
electrons and neutrons
9.
The subatomic particle that determines the identity of an element.
a)
neutron
b)
proton
c)
electron
d)
outer shell
10.
What charge does the nucleus have and why?
a)
positive - the neutrons do not have a charge
b)
positive - the neutrons and protons are positively charged particles
c)
neutral - the neutral charge dominates the positive charge
d)
neutral - electrons cancel out the positive charge of the atom
11.
An element with a mass number of 10 and an atomic number of 6 has how many protons?
a)
5
b)
8
c)
6
d)
10
12.
Matter that cannot be broken down into a simpler substance – building blocks of life.
a)
neutron
b)
atom
c)
electron
d)
quarks
13.
Elements on the periodic table increase by...
a)
atomic mass
b)
size
c)
mass number
d)
atomic #
14.
Most of the mass of an atom is contained here.
a)
electron orbitals
b)
nucleus
c)
shells
d)
atomic #
15.
What is the number that gives you the element and the number of protons contained in each elemental atom?
a)
atomic mass
b)
mass number
c)
symbol
d)
atomic #
16.
What are valence electrons?
a)
electrons on the first orbital always
b)
nucleus
c)
the innermost shell
d)
the number of electrons on the outermost orbital
17.
Which letter represents a proton?
a)
A
b)
B
c)
C
d)
D
18.
Which letter represents a neutron?
a)
A
b)
B
c)
C
d)
D
19.
Which letter represents an electron?
a)
A
b)
B
c)
C
d)
D
20.
Which letter represents the nucleus?
a)
A
b)
B
c)
D
d)
E
21.
Which letter represents the electron cloud?
a)
A
b)
B
c)
D
d)
E
22.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
23.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
24.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
25.
How many neutrons are in an atom of Beryllium?
a)
4
b)
9
c)
9.01
d)
5
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