Nuclear Chemistry

Front

What is the difference between carbon-12 and carbon-14?

Back

They have a different number of neutrons.

Front

Why do some elements have half-lives?

Back

Their nucleus is unstable.

Front

Order the types of radiation from most penetrating to least penetrating: Alpha, Beta, Gamma.

Back

Gamma, Beta, Alpha.

Front

If Barium-122 has a half-life of 2 minutes, how much will be left from an 80 g sample after 10 minutes?

Back

2.5 g.

Front

What type of nuclear reaction emits gamma radiation?

Back

Gamma.

Front

Define nuclear chemistry.

Back

The study of the chemical and physical properties of elements as influenced by changes in the structure of the nucleus.

Front

What is a half-life?

Back

The time required for half of the radioactive atoms in a sample to decay.

Front

What is radioactive decay?

Back

The process by which an unstable atomic nucleus loses energy by emitting radiation.

Front

What are alpha particles?

Back

Helium nuclei emitted during some types of radioactive decay.

Front

What are beta particles?

Back

High-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei.