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WorksheetsIntro to Matter & Atoms
Total questions: 15
Worksheet time: 3mins
Name
Class
Date
1.
Most elements are formed
a)
in our bodies
b)
on Earth
c)
in the stars and super novae
d)
by people
2.
Anything that has mass and takes up space.
a)
atom
b)
matter
c)
molecule
d)
physical property
3.
The smallest particle of an element
a)
atom
b)
matter
c)
molecule
d)
physical property
4.
The number of protons = the
a)
atomic number
b)
atomic mass
c)
neutrons
d)
atomic symbol
5.
Iodine is atomic number 53, has _____ protons.
a)
74
b)
53
c)
7
d)
73.9
6.
How many protons are in an atom of gold?
a)
155
b)
196
c)
117
d)
79
7.
The number of electrons =
a)
number of protons
b)
atomic mass
c)
number of neutrons
d)
atomic symbol
8.
Krypton 36 protons and 48 neutrons. Electrons = ?
a)
12
b)
48
c)
36
d)
84
9.
What is the atomic mass of one atom of gold?
a)
196.967
b)
79
c)
158
d)
Au
10.
How many protons does an atom of gold have?
a)
196
b)
158
c)
196.967
d)
79
11.
How do you find the number of neutrons in an atom?
a)
atomic number
b)
atomic mass
c)
atomic mass - atomic number
d)
chemical symbol
12.
Hydrogen has an atomic mass of 1 and has 1 proton, neutrons = ?
a)
0.008
b)
0
c)
1
d)
1.008
13.
Beryllium (Be) has an atomic mass of 9 and has 4 protons, neutrons =
a)
2
b)
4
c)
5
d)
9
14.
How many protons does potassium have?
a)
19
b)
39.098
c)
20
d)
K
15.
How many neutrons does potassium have?
a)
19
b)
39.098
c)
20
d)
K
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