Radioactivity; Typer of Particles and Nuclear Equations

Front

What types of radioactive decay has a negative charge?

Back

Beta particles.

Front

What happens to the atomic number during alpha decay?

Back

The atomic number decreases by 2.

Front

What is the least penetrating form of radiation?

Back

Alpha particles.

Front

What are the products of Co-60 decay?

Back

A beta particle and Ni-60.

Front

Solve this equation for alpha decay: 209_85At = ___ + 4_2He.

Back

205_83Bi.

Front

What is radioactivity?

Back

The process by which unstable atomic nuclei lose energy by emitting radiation.

Front

What are alpha particles composed of?

Back

Two protons and two neutrons.

Front

How does beta decay affect the atomic mass?

Back

The atomic mass remains nearly the same, as a neutron is converted into a proton.

Front

What is the charge of alpha particles?

Back

Alpha particles have a positive charge.

Front

What type of radiation can be stopped by paper or skin?

Back

Alpha radiation.