Radioactivity And Nuclear Reactions II: Question Preview (ID: 15125)

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The discovery that uranium is a radioactive element was made by
a) Henri Becquerel
b) Dmitri Mendeleev
c) Louis Pasteur
d) Marie and Pierre Curie

Radium and polonium were discovered by
a) Henri Becquerel
b) Dmitri Mendeleev
c) Louis Pasteur
d) Marie and Pierre Curie

A form of radiation that travels as waves is
a) beta
b) quark
c) gamma
d) alpha

Energy in the sun is produced as a result of
a) nuclear fission
b) chemical reactions
c) both nuclear fusion and nuclear fission
d) nuclear fusion

The constant rate at which a radioactive element decays is called
a) a chemical change
b) its attrition
c) its decomposition
d) its half-life

The use of carbon-14 to determine the age of fossils is called
a) transmutation
b) chemical dating
c) radioactive dating
d) attrition

The process of nuclear decay is called
a) decomposition
b) radioactivity
c) nuclear attraction
d) nuclear attrition

The process by which one element changes to another element through nuclear decay is called
a) transmutation
b) attrition
c) decomposition
d) chemical decay

Any radioisotope that is used to detect changes in bodily functions is a(an)
a) biological detector
b) chemical signal
c) tracer
d) ion

Protons and neutrons are attracted to each other because
a) protons are positive and neutrons are negative
b) protons are negative and neutrons are positive
c) the strong force
d) the oppositie force

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