WorksheetsAtomic Structure
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
What four elements are in all living things?
a)
C, O, N, H
b)
Cl, O, H, N
c)
H, O, T, N
d)
H, Co, N, O
2.
What is an atom?
a)
The tiniest building block of protons.
b)
The tiniest building block of all matter.
c)
The tiniest building block of energy.
d)
The tiniest building block of electrons.
3.
What is found in the nucleus of atoms?
a)
Protons and electrons.
b)
Protons, neutrons, and electrons.
c)
Protons and neutrons.
d)
Neutrons and electrons.
4.
The atomic number of an element informs us of the number of ________________ in its nucleus.
a)
electrons
b)
protons
c)
neutrons
d)
protons and neutrons
5.
A carbon atom has _________ protons in its nucleus.
a)
12
b)
12.01
c)
6
d)
18
6.
Be has ___________ neutrons in the nucleus.
a)
5
b)
4
c)
9
d)
13
7.
The atomic mass of calcium is ____________.
a)
80
b)
60
c)
20
d)
40
8.
What elements combine to make water?
a)
H
b)
O
c)
O and H
d)
H and C
9.
Atoms of the same kind combine to form __________.
a)
elements
b)
molecules
c)
mixtures
d)
atoms
10.
NaCl is an example of a ___________, because it is formed from two different elements.
a)
element
b)
atom
c)
compound
d)
solution
11.
What is the chemical symbol for iron?
a)
I
b)
Fe
c)
FE
d)
Ir
12.
What particle orbits the nucleus of an atom?
a)
Electrons
b)
Protons
c)
Neutrons
d)
Nuetrons
13.
Protons have a ______ charge.
a)
postive
b)
negative
c)
neutral
d)
postive and negative
14.
Electrons have a __________ charge.
a)
positive
b)
negative
c)
neutral
d)
positive and negative
100 %
