Nuclear Chemistry

Front

Which type of radiation has the greatest penetrating power?

Back

Gamma

Front

The nuclear process occurring at a nuclear power plant.

Back

Nuclear fission

Front

The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient, how much remains after 18 hours? Options: 33.0 mg, 12.5 mg, .33 mg, 15.8 mg

Back

12.5 mg

Front

Why does an atom undergo beta decay?

Back

It has more neutrons than protons

Front

What happens to the atomic number during alpha decay?

Back

The atomic number decreases by 2.

Front

Arrange in order of increasing ability to penetrate matter: Alpha, beta, gamma

Back

Alpha, beta, gamma

Front

During fission, some of the nuclear mass is converted into

Back

energy

Front

Balance the following equation:
¹⁴₆C --> ⁰_-1e + ________
Options: ¹⁴₅B, ¹⁴₆C, ¹⁴₇N, ⁴₂He

Back

¹⁴₇N

Front

In the symbol ¹⁶₇N, what does the 7 stand for?

Back

Atomic number

Front

The half life of Thorium-234 is 24 days. What fraction of the element remains after 96 days?

Back

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