Chem Chapters 4+5 Review

Front

Atomic radius

Back

One-half the distance between the nuclei of two atoms of the same element when the atoms are joined. Basically the size of the atom.

Front

Electron Affinity

Back

The energy change associated with the addition of an electron to a gaseous atom.

Front

Ion

Back

An electrically charged atom that has gained or lost one or more electrons.

Front

Ionization Energy

Back

The energy required to remove an electron from an atom in its gaseous state.

Front

Metal

Back

A class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity. Metals tend to lose electrons.

Front

Nonmetal

Back

An element that is a poor conductor of heat and electricity. Nonmetals tend to gain electrons.

Front

Metalloid

Back

Elements that may accept or donate electrons readily and possess a mixture of metallic and nonmetallic properties.

Front

Periodic Law

Back

When the elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.

Front

Period

Back

A horizontal row of elements in the periodic table.

Front

Group

Back

A vertical column of elements in the periodic table.