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Radioactive Decay

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

An alpha particle consists of...

a)

2 protons and 2 neutrons

b)

1 proton and 1 neutron

c)

2 protons and 1 neutron

d)

1 proton and 2 neutrons

2.

A beta particle is a fast moving....

a)

atom

b)

electron

c)

proton

d)

neutron

3.

The Uranium nucleus U92235U_{92}^{235} consists of...

a)

92 protons and 235 neutrons

b)

143 protons and 92 neutrons

c)

92 protons and 143 neutrons

4.

When an unstable nucleus emits an alpha particle the nucleus looses....

a)

an electron

b)

1 proton and 1 neutron

c)

2 protons and 2 neutrons

d)

energy

5.

The Carbon nucleus C614C_6^{14} is unstable and decays by emitting a beta particle. In the original nucleus there are...

a)

8 protons and 6 neutrons

b)

6 protons and 8 neutrons

c)

6 protons and 14 neutrons

d)

14 protons and 6 neutrons

6.

The Carbon nucleus C614C_6^{14} is unstable and decays by emitting a beta particle. In the product nucleus there are...

a)

4 protons and 10 neutrons

b)

6 protons and 4 neutrons

c)

7 protons and 7 neutrons

7.

The product nucleus of Carbon-14 beta decay is Nitrogen, N515N_5^{15} ...

a)

True

b)

False

8.

Two isotopes of uranium are U92235U_{92}^{235} and U92235U_{92}^{235} .The U92238U_{92}^{238} nucleus has...

a)

238 protons and 92 neutrons

b)

92 protons and 238 neutrons

c)

92 protons and 146 neutrons

d)

146 protons and 92 neutrons

9.

Two isotopes of an element have the same number of neutrons and a different number of protons.

a)

true

b)

false