NEW
Font size
S
M
L
XL
WorksheetsNuclear Decay
Total questions: 15
Worksheet time: 9mins
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.
The process of nuclear change in an atom of radioactive material is called...
a)
nuclear decay
b)
nuclear mass
c)
isotopes
d)
radon
4.
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.
5.
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.
6.
The process of the production of lighter nuclei from heavier nuclei is called
a)
mass energy
b)
magneticism
c)
fusion
d)
fission
7.
Radioactive materials have unstable...
a)
electrons
b)
protons
c)
nuclei
d)
neutrons
8.
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
9.
The most penetrating type of radiation is the ____.
a)
alpha particle
b)
gamma ray
c)
beta particle
d)
uranium
10.
A helium nucleus with two protons and two neutrons is called a(n) ____.
a)
alpha particle
b)
electroscope
c)
beta particle
d)
gamma ray
11.
Negatively charged particles emitted from a nucleus at a high speed are ____.
a)
alpha particle
b)
gamma rays
c)
beta particles
d)
X rays
12.
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
13.
Radioactive tracers are useful in ____.
a)
calculating the ages of fossils
b)
fueling nuclear reactions
c)
determining medical problems
d)
treating brain tumors
14.
The process by which nuclei having low masses are united to form nuclei with larger masses is ____.
a)
a chain reaction
b)
fission
c)
a chemical reaction
d)
fusion
15.
For which of the following problems would a scientist most likely use carbon-14?
a)
to calculate the age of the Earth's oldest rocks
b)
to calculate the age of a piece of bone
c)
to identify the elements that make up a rock
d)
to identify the elements that make up a bone
Reset
