Worksheetsatomic structure
Total questions: 13
Worksheet time: 11mins
Name
Class
Date
1.
What is the atomic number?
a)
the number of protons in the nucleus
b)
the number of protons and neutrons in the nucleus
c)
the number of neutrons in the nucleus
d)
the number of protons in the energy levels
2.
What is the mass number?
a)
the number of protons in the nucleus
b)
the number of protons and neutrons in the nucleus
c)
the number of neutrons in the nucleus
d)
the number of protons and electrons in the atom
3.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
4.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
5.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
6.
In order for an atom to be neutral what has to be true?
a)
The atom has more protons than neutrons
b)
The atom has more neutrons than protons
c)
The atom has the same number of protons and neutrons
d)
The atom has the same number of protons and electrons
7.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol
8.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
9.
How many electrons does this atom have?
a)
2
b)
4
c)
6
d)
10
10.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
11.
How many protons are in the nucleus of the element shown?
a)
19
b)
9
c)
10
d)
28
12.
Choose all of the correct Anion
a)
SO42-
b)
Na+
c)
HCO3-
d)
Fe2+
13.
Choose all of the correct Cation
a)
Fe3+
b)
K+
c)
F-
d)
O2-
100 %
