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6.1 Radioactive Decay Physics SPM F5

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

In the equation, 146C --> 147N + 0-1B, the _______ decay of radioactive carbon-14 results in the creation of a new nitrogen-14 atom.

a)

Gamma

b)

Beta

c)

Alpha

2.
How is the alpha particle written in a nuclear equation?
a)
42He
b)
24He
3.
A helium nucleus with two protons and two neutrons is called a(n) ____.  
a)
alpha particle
b)
electroscope
c)
beta particle
d)
gamma ray
4.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma 
d)
none
5.

Gamma rays have

a)

no mass

b)

a huge mass

c)

a small mass

d)

an average mass

6.
a)

A

b)

B

c)

C

d)

D

7.

Alpha decay causes the mass number of the nucleus to decrease by ________ and the atomic number of the nucleus to decrease by _______.

a)

four, two

b)

two, four

c)

one, two

d)

two, three

8.

Beta radiation is ____________________

a)

an electron from an electron shell.

b)

an electron from the nucleus.

c)

two protons and two neutrons.

d)

a high frequency electromagnetic wave.

9.
When an unstable radioactive atom decays, it usually turns into:
a)
a more stable atom
b)
a less stable atom
c)
the exact same atom but with less pure energy
d)
empty space
10.

What is the meaning of isotope?

a)

Elements with same mass number but different proton number

b)

Elements with same nucleon number but different proton number

c)

Elements with different nucleon number and different proton number

d)

Elements with different mass number but same proton number