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WorksheetsThe Atom- Take 2!
Total questions: 15
Worksheet time: 17mins
Name
Class
Date
1.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
2.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
3.
The smallest part of an element...
a)
atom
b)
molecule
c)
electron
4.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
5.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
6.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
7.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
8.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
9.
Which element has 31 protons ?
a)
Gallium
b)
Germanium
c)
Gadolinium
d)
Polonium
10.
Oxygen’s atomic number is 8. This means that an oxygen atom must have
a)
8 electrons
b)
8 protons
c)
8 neutrons
d)
a mass number of 8
11.
Electrons carry what charge?
a)
neutral
b)
negative
c)
positive
12.
Neutrons carry what charge?
a)
neutral
b)
negative
c)
positive
13.
How many protons does an atom of Sodium (Na) have?
a)
12
b)
11
c)
23
14.
What is the mass number of Phosphorous (P)?
a)
15
b)
30
c)
31
d)
16
15.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
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