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Ch 10 Nuclear Changes
Test Description: .
Instructions: Answer all questions to get your test result.
1) Alpha particles
A
all of the answers are correct
B
consist of two protons and four neutrons
C
can penetrate any thickness of matter
D
are positively charged
2) The type of nuclear radiation that can penetrate farthest through matter is called
A
gamma rays
B
neutron emission
C
none of the answers are correct
D
radons
3) as beta particle ionize atoms, they
A
lose energy
B
none of the answers are correct
C
gain energy
D
neither lose nor gain energy
4) In E=mc2, c stands for
A
the size of the particle
B
total energy
C
the speed of light
D
carbon
5) radon gas is produced
A
as a result of rotting wood in the basesment
B
by nuclear power plants
C
through radio active decay or uranium 238 in the Earths crust
D
by smoking cigarettes
6) small radioactive sources that are present in smoke detectors release
A
neutrons
B
gamma rays
C
beta particles
D
alpha particles
7) which of the following occurs in the nucleus during alpha decay
A
two neutron and two electrons are lost
B
two neutron and two electrons are gained
C
two protons and two neutrons are lost
D
two protons and two neutrons are gained
8) what changes in the nucleus during nuclear decay by gamma rays
A
atomic number
B
atomic mass
C
energy content
D
all of the above
9) archaeologists use the half life of ____ to date organic materials
A
uranium 238
B
carbon 12
C
atomic mass
D
carbon 14
10) what holds protons and nuetrons together in a nucleus
A
atomic mass
B
strong nuclear force
C
like charges attracting
D
like charges repelling
*select an answer for all questions
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