PS 10.1 Formative

French physicist Antoine Henri Becquerel discovered ______ while performing experiments with photographic plates.

The process in which an unstable atomic nucleus emits charged particles and energy.

A positively charged particle made up of two protons and two neutrons.

Any atom containing an unstable nucleus.

During nuclear decay, atoms of one element can change into atoms of a completely different element.

Charged particles and energy that are emitted from the nuclei of radioisotopes.

An electron emitted by an unstable nucleus.

A penetrating ray of electromagnetic energy emitted by an unstable nucleus.

Some nuclear radiation occurs naturally in the environment.

A potentially dangerous natural source of alpha particles that can collect in the basements of buildings without proper ventilation.