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nuclear decay review

Total questions: 20

Worksheet time: 25mins

Name
Class
Date
1.
After the nucleus of a radioactive element undergoes changes, the element can transform into ...
a)
  (a)  a different isotope of the same element.
b)
(b) an entirely different element.
c)
Both (a) and (b)
d)
Neither (a) nor (b)
2.
Alpha particles.....
a)
a) are positively charged.
b)
b) consist of two protons and four neutrons.
c)
c) can penetrate any thickness of matter
d)
d) All of the above 
3.
During beta decay, a nucleus .... 
a)
gives up two protons and two neutrons.
b)
  maintains the same number of protons and neutrons.
c)
  loses a proton and gains a neutron.
d)
gains a proton and loses a neutron. 
4.
When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....
a)
remains the same
b)
  decreases by one.
c)
increases by one.
d)
increases by two.
5.
Radioactive materials have unstable...
a)
electrons
b)
protons
c)
nuclei
d)
neutrons
6.
The type of radioactive particle that can be stopped by a sheet of paper is the ____.
a)
alpha particle
b)
beta particle
c)
gamma ray
d)
uranium
7.
The most penetrating type of radiation is the ____.  
a)
alpha particle
b)
gamma ray
c)
beta particle
d)
uranium
8.
Negatively charged particles emitted from a nucleus at a high speed are ____.  
a)
alpha particle
b)
gamma rays
c)
beta particles
d)
X rays
9.
The three types of nuclear radiation in increasing order of penetrating power are ____.  
a)
  alpha, beta, gamma 
b)
X ray, beta, gamma
c)
alpha, gamma, beta 
d)
X ray, gamma, beta 
10.

Which force holds protons and neutrons together in the atom nucleus?

a)

electric force

b)

gravity

c)

strong nuclear force

d)

weak nuclear force

11.

What type of nuclear decay is represented in this illustration?

a)

beta decay

b)

gamma radiation

c)

alpha decay

d)

nuclear fusion

12.

Solve the nuclear decay reaction:

a)
b)
c)
d)
13.

Solve the nuclear decay reaction:

a)

32/15 P

b)

32/17 P

c)

32/16 P

d)

32/17 Cl

14.

finish the equation


18173Ta --> ____ + 18174W

a)

42He

b)

0-1e

c)

y

15.

Solve this equation.

85209At = ___ + 24He

a)

83205Bi

b)

86209Rn

c)

81207Tl

d)

85208At

16.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
17.

In a correctly written symbol what would be located in the "Z" position?

a)

number of neutrons

b)

atomic number

c)

number of electrons

d)

mass number

18.

What type of nuclear decay is shown here

13756Ba →→ 13756Ba + γ rays

a)

alpha

b)

beta

c)

gamma

19.

Uranium undergoes neutron emission

a)

U 238/92 --> n 1/0 + U 239/92

b)

U 238/92 --> n 1/0 + U 237/92

c)

U 238/92 --> He 4/2 + Pu 241/94

d)

U 238/92 --> e 0/-1 + Np 238/93

20.

carbon 14 undergoes a neutron emission

a)

C 14/6 --> He 4/2 + O 18/8

b)

C 14/6 --> n 1/0 + C 13/6

c)

C 14/6 --> n 1/0 + C 15/6

d)

C 14/6 --> E 0/-1 + N 14/7

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