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WorksheetsIdentify Atoms
Total questions: 23
Worksheet time: 14mins
Name
Class
Date
1.
The particles in an atom that are neutral and have no charge are...
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
2.
An atom with atomic number 6 would have how many protons?
a)
6
b)
12
c)
3
d)
cannot be determined
3.
The central region of an atom where its neutrons and protons are is its...
a)
nucleus
b)
electron cloud
c)
core
d)
center
4.
The positive particles of an atom are...
a)
electrons
b)
positrons
c)
neutrons
d)
protons
5.
The smallest unit of matter is...
a)
energy
b)
an atom
c)
electrons
d)
compounds
6.
Electrons have what type of charge?
a)
negative
b)
positive
c)
neutral
7.
Which element has the atomic number 10?
a)
Neon
b)
Flourine
c)
Potassium
d)
Hydrogen
8.
How many protons are in the element sodium?
a)
23
b)
11
c)
13
d)
14
9.
How many electrons are in the element oxygen?
a)
7
b)
10
c)
8
d)
9
10.
"C" is the element symbol for which element?
a)
calcium
b)
carbon
c)
chlorine
d)
cadmium
11.
What is the atomic symbol for sodium?
a)
Na
b)
So
c)
NaCl
d)
S
12.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
13.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
14.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
15.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
16.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
17.
The smallest part of an element is known as the
a)
Periodic Table
b)
Atom
c)
Group
d)
Period
18.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
19.
The first energy level can hold up to, how many electrons?
a)
8
b)
4
c)
2
d)
5
20.
The second energy level can hold up to, how many electrons?
a)
2
b)
8
c)
10
d)
12
21.
How many valence electrons are in the atom "Mg"?
a)
2
b)
5
c)
3
d)
9
22.
How many total electrons does carbon have?
a)
10
b)
12
c)
6
d)
14
23.
What are the 3 particles that make-up an atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
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