WorksheetsAtom Review
Total questions: 19
Worksheet time: 28mins
Name
Class
Date
1.
a)
2
b)
8
c)
3
d)
13
2.
a)
2
b)
3
c)
5
3.
Valence electrons are the...
a)
Innermost electrons
b)
Middle electrons
c)
Outermost electrons
d)
Any electrons
4.
According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.
a)
2
b)
4
c)
6
d)
8
e)
10
5.
Which has the greater electronegativity:
N or C?
a)
C
b)
N
6.
Which has the greater electronegativity:
H or F?
a)
H
b)
F
7.
What elements have zero electronegativity?
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
8.
Which of these phrases best describes an atom?
a)
a positive nucleus surrounded by a hard negative shell
b)
a positive nucleus surrounded by a cloud of negative charges
c)
a hard sphere with postive and negative charges on the outside
d)
a negative nucleus surrounded by protons and neutrons
9.
Which of the following particles has the smallest mass?
a)
neutron
b)
proton
c)
nucleus
d)
electron
10.
What is true about an atom?
a)
Most of the space in an atom is taken up by the nucleus
b)
Atoms are mostly empty space
c)
Atoms have no mass
d)
Electrons have much more mass that protons or neutrons.
11.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
12.
How many protons are in Gold
a)
79
b)
197
c)
118
d)
276
13.
What is the atomic mass of Neon?
a)
10
b)
20.18
c)
10.18
d)
9.82
14.
How many Neutrons are in Neon
a)
10
b)
21
c)
20
d)
30
15.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
16.
What is this element?
a)
Beryllium (atomic #4)
b)
Boron (atomic #5)
c)
Carbon (atomic #6)
d)
Nitrogen (atomic #7)
17.
Which Bohr model represents Neon?
a)
b)
c)
d)
18.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
19.
How many valence electrons?
a)
2
b)
3
c)
5
d)
10
100 %
