Nuclear Chemistry

Front

What is nuclear chemistry?

Back

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

Front

What are the three main types of nuclear radiation?

Back

Alpha particles, beta particles, and gamma rays.

Front

Define alpha radiation.

Back

Alpha radiation consists of helium nuclei (2 protons and 2 neutrons) emitted from a radioactive source.

Front

Define beta radiation.

Back

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

Front

Define gamma radiation.

Back

Gamma radiation is a form of electromagnetic radiation of high frequency and energy, emitted from a radioactive nucleus.

Front

What is a half-life?

Back

A half-life is the time required for half of the radioactive atoms in a sample to decay.

Front

How do you calculate the remaining mass of a radioactive substance after a certain number of half-lives?

Back

Remaining mass = Initial mass × (1/2)^(number of half-lives).

Front

What is the half-life of Iodine-125?

Back

The half-life of Iodine-125 is 25 years.

Front

What is the half-life of Iodine-131?

Back

The half-life of Iodine-131 is 8 days.

Front

What is nuclear fusion?

Back

Nuclear fusion is the process where two or more atomic nuclei combine to form a single, heavier nucleus.