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RADIOACTIVITY

Total questions: 25

Worksheet time: 6hrs 15mins

Name
Class
Date
1.

The three types of nuclear radiation in order of decreasing penetrating power are

a)

alpha, beta, gamma

b)

alpha, gamma, beta

c)

beta, alpha, gamma

d)

gamma, alpha, beta

2.
What makes something radioactive?
a)
elements with an atomic number above 81
b)
an unstable nucleus
c)
contaminated sewage
d)
It decays over time
3.
_______________ is the process by which unstable atoms emit radiation until they become stable.
a)
Radiation
b)
Chemical Reaction
c)
Radioactive Decay
d)
Isotopes
4.
Marie Curie was the first woman to win a...
a)
Golden Globe
b)
Nobel Prize
c)
Oscar
d)
 Emmy Award
5.
This particle determines what element you have - the elements identity.
a)
electron
b)
proton
c)
neutron
d)
valence shell
6.
Which particles make up the nucleus of an atom?
a)
protons and neutrons
b)
electrons and protons
c)
electrons, protons, and neutrons
d)
electrons and neutrons
7.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
8.
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
a)
11
b)
5
c)
6
d)
16
9.

An isotope of an element has the same number of _________, but a different number of _________.

a)

Protons, electrons

b)

Protons, neutrons

c)

Electrons, neutrons

d)

Neutrons, protons

10.

A radioactive nuclide has a ____ stable nucleus than a non-radioactive nucleus of the same element.

a)

more

b)

less

c)

identical

d)

small

11.

Which type of radiation releases an electron?

a)

Alpha radiation

b)

Beta radiation

c)

Gamma radiation

d)

Theta radiation

12.
Which type of radioactive decay is occurring in this equation? 
a)
Alpha decay
b)
beta decay
c)
gamma decay
d)
positron emission
13.
Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 
a)
alpha
b)
beta
c)
gamma
d)
none
14.
What is the missing isotope that will balance the following nuclear equation?
94Be  +  11H →  _____  +  42He
a)
105B
b)
105Ne
c)
63Li
d)
63C
15.
a)
23692U
b)
23693U
c)
23492Np
d)
23493Np
16.

Complete the nuclear reaction

85209At = ___ + 24He

a)

83205Bi

b)

86209Rn

c)

81207Tl

d)

85208At

17.

Complete the nuclear reaction

2760Co = ___ + -10e

a)

2556Mn

b)

2860Ni

c)

2358V

d)

2759Co

18.

Complete the nuclear reaction

a)

42He

b)

0-1 e

c)

00Y

d)

178O

19.

Complete the nuclear reaction

a)

42He

b)

0-1 e

c)

00γ

d)

178O

20.
a)
42He
b)
0-1 e
c)
00Y
d)
178O
21.

Which of the following nuclear emissions is only energy?

a)

Alpha particle

b)

Beta particle

c)

Gamma ray

22.

Which equation correctly represents the alpha decay of polonium-214?

a)

A

b)

B

c)

C

d)

D

23.
a)

alpha particle

b)

beta particle

c)

neutron

d)

proton

24.
a)

A

b)

B

c)

C

d)

D

25.
a)

it's 88 because element X gains 2 protons

b)

it's 218 because element X loses 2 protons and 2 neutrons

c)

it's 220 because element X loses 2 neutrons

d)

it's 226 because element X gains 2 protons and 2 neutrons

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