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Worksheetshow atoms differ
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
The number of protons an element has is known as its _____
a)
mass number
b)
atomic number
c)
atomic weight
d)
atomic mass
2.
What is the type of nuclear decay?
a)
Alpha particle
b)
Beta particle
c)
Gamma ray
d)
all of the above
3.
What particles in the atom have the same relative mass?
a)
Protons and neutrons
b)
Neutrons and electrons
c)
Protons and electrons
d)
Protons, neutrons, and electrons
4.
When electrons are gained it gets a positive charge
a)
True
b)
False
5.
Elements that spontaneously emit radiation are called _____
a)
Nuclear decay
b)
Isotopes
c)
Radioactivity
d)
Ions
6.
Which particle in a element always stays the same?
a)
Neutron
b)
Proton
c)
Electron
d)
Nucleus
7.
How do you find mass number?
a)
Electrons+protons
b)
Electrons/protons
c)
Neutrons-electons
d)
Protons+neutrons
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