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Worksheets2.1 PROTON NUMBER, NUCLEON NUMBER AND ISOTOPE
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
2.
Isotopes of an element have a different number of...
a)
Protons
b)
Neutrons
c)
Electrons
d)
Mass
3.
A neutral atom of the isotope 2612Mg would consist of
a)
12 protons, 26 neutrons, 26 electrons
b)
26 protons, 12 neutrons, 26 electrons
c)
26 protons, 14 neutrons, 14 electrons
d)
12 protons, 14 neutrons, 12 electrons
4.
What is the mass number of the element shown?
a)
15
b)
7
c)
8
d)
0
5.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
6.
Subatomic particle with no charge
a)
proton
b)
neutron
c)
electron
d)
nucleus
7.
Subatomic particle with a negative charge
a)
proton
b)
electron
c)
neutron
d)
nucleus
8.
The nucleus of an atom consist of:
a)
electrons
b)
protons and electrons
c)
protons and neutrons
d)
neutrons and electrons
9.
A carbon isotope consists of 6 protons, 6 electrons and 8 neutrons. What is the mass number for this isotope?
a)
12
b)
14
c)
6
d)
8
10.
Which of the subatomic particles is the lightest
a)
all have the same mass
b)
protons
c)
neutrons
d)
electrons
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