Nuclear Radiation

Nuclear chemistry focuses on the atom's

• nucleus

• electrons

C-12, C-13, and C-14 are examples of

Which two things are true about isotopes?

• they have the same number of protons

• they have different numbers of protons

• they have the same number of neutrons

• they have different numbers of neutrons

The stability of an isotope is based on the ratio of its

• neutrons and protons

• neutrons and positrons

• electrons and positrons

• electrons and protons

Unstable isotopes are also called

To become stable, radioactive isotopes

• go through radioactive decay

• emit (release) radiation

• absorb radiation

Which emission (nuclear radiation) has an atomic number of 2 and a mass number of 4?

• alpha particle

• beta particle

• gamma radiation

• positron

Which particle has the least mass?

• beta particle

• alpha particle

• neutron

• proton

Which nuclear emission (radiation) is negatively charged?

• beta particle

• alpha particle

• neutron

• positron

Which nuclear emission (radiation) is correctly listed with its notation?

• gamma radiation, ⁰₀y

• proton, ⁴₂He

• neutron, ⁰_-1B

• alpha particle, ¹₁H