Chapter 5 vocab

Front

Table of elements arranged by increasing atomic number or mass

Back

periodic table

Front

Column of the periodic table with similar properties:

Back

group

Front

Class of elements that are good conductors of electricity:

Back

metals

Front

Area at fixed distances from an atom's nucleus where electrons orbit:

Back

energy level

Front

Electrons in the outermost energy level involved in chemical bonding:

Back

valence electrons

Front

Metal in group 1 of the periodic table with one valence electron, highly reactive:

Back

alkali metal

Front

Metal in groups 3-12 of the periodic table, hard, shiny, and less reactive than groups 1 & 2.

Back

transition metal

Front

Class of elements that do not conduct electricity:

Back

nonmetals

Front

Nonmetal in group 17 with 7 valence electrons, highly reactive:

Back

Halogen

Front

Nonmetal in group 18 of the periodic table with 8 valence electrons (2 for Helium), unreactive:

Back

Noble gas