Atomic Structure and PT Vocabulary Practice

Front

Ion

Back

A charged atom.

Can be negative or positive.

Front

Oxidation Number

Back

The number of electrons lost or gained in order to become more stable.

The charge achieved to meet the Octet Rule.

Front

Electron

Back

Negatively (-) charged particle that orbits the nucleus.

Essentially massless (no mass).

Front

Metals

Back

Elements that are shiny and good conductors of electricity.

Most elements on the Periodic Table.

Front

Atomic Mass

Back

Front

Mass Number

Back

Total number of protons and neutrons of an atom.

Whole number.

Front

Non-Metals

Back

Elements that are dull and poor conductors of heat and electricity.

Located to the right of the metalloids on the PT.

Front

Isotope

Back

Atoms with the same number of protons, but different number of neutrons than the most common form of that type of atom.

Front

Group/Family

Back

Elements that have the same number of valence (outer shell) electrons, which determines its reactivity.

Elements that are in the same column on the PT.

Front

Malleability

Back

Can be hammered or molded into shapes or thin sheets.