Nuclear Chemistry

An isotope that has an unstable nucleus is called a(n):

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112.43.c.14

112.43.c.14.A

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

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112.43.c.14

Negatively charged particles found outside of the nucleus are called

• electron
• protons
• neutrons
• nucleons

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112.43.c.14

Has the symbol

• Alpha
• Beta
• Gamma

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112.43.c.14

What type of nuclear reaction is this?

• alpha
• beta
• gamma
• hot

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112.43.c.14

emitted helium nucleus

• positron

• radioactivity

• alpha particle

• gamma radiation

• beta particle

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112.43.c.14

Uranium-238  decays into  Thorium-234  by emitting .........

• an alpha particle
• a beta particle
• gamma rays
• visible light

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112.43.c.14

What is meant by the statement that ³²₁₅P has a half life of 14 days

• It takes 7 days to go down to 50% radioactivity each time

• It takes 14 days to go down to 50% radioactivity each time

• After 14 days it starts to become less radioactive

• It takes 14 days to go up by 50% radioactivity each time

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112.43.c.14

Which type of radiation can be found on the electromagnetic spectrum?

• alpha

• beta

• gamma

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112.43.c.14

Complete the nuclear equation and determine the type of decay that is occurring in this reaction.

• alpha, ⁴₂He

• beta, ⁰_-1e

• gamma

• none

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112.43.c.14