Chemistry: Matter and Change

Section 1: Nuclear Radiation

Self Check Quizzes

1
Unstable atomic nuclei emit radiation to __________.
A)attain more stable atomic configurations
B)gain electrons
C)gain neutrons
D)lose protons
2
What particle emitted during radioactive decay has a mass of 4 amu?
A)alpha particle
B)beta particle
C)gamma particle
D)delta particle
3
The type of radiation that has the greatest penetrating ability is _________
A)alpha radiation
B)beta radiation
C)gamma radiation
D)delta radiation
4
Isotopes are atoms of ________ that have __________.
A)the same element; different masses
B)different elements; the same masses
C)different elements; different masses
D)the same element; the same mass
5
Why can the mass of beta particles be ignored in nuclear reactions?

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A)Beta particles are massless.
B)Beta particles have negative mass.
C)Beta particles have extremely small mass.
D)The Beta particle's mass is canceled by another particle called a neutrino.
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