Radioactivity; Typer of Particles and Nuclear Equations

Front

What is alpha decay?

Back

A type of radioactive decay in which an atomic nucleus emits an alpha particle (2 protons and 2 neutrons), resulting in a new nucleus with a lower atomic number.

Front

What is the least penetrating form of radiation?

Back

Alpha radiation.

Front

What is fission?

Back

The splitting of a nucleus into smaller, lighter nuclei, often releasing a large amount of energy.

Front

Which atomic numbers can undergo fission?

Back

Only nuclei with large atomic numbers can undergo fission.

Front

What happens to a nucleus during nuclear fission?

Back

The nucleus divides into smaller nuclei.

Front

What is a beta particle?

Back

A beta particle is a high-energy, high-speed electron or positron emitted during radioactive decay.

Front

What is gamma radiation?

Back

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

Front

What is the difference between fusion and fission?

Back

Fusion is the process of combining two light nuclei to form a heavier nucleus, while fission is the splitting of a heavy nucleus into lighter nuclei.

Front

What is a nuclear equation?

Back

A nuclear equation shows the reactants and products in a nuclear reaction, including the types of particles involved.

Front

What is a half-life?

Back

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