Match each definition to the correct vocabulary word.
Column A
1.
Electrons in the outermost energy level of the atom. These electrons are involved in bonding.:
f
Electrons in the outermost energy level of the atom. These electrons are involved in bonding.
2.
The number of protons in the nucleus of an atom. This number is used to identify an element.:
b
The number of protons in the nucleus of an atom. This number is used to identify an element.
3.
The sum of the protons and neutrons in the nucleus of an atom.:
e
The sum of the protons and neutrons in the nucleus of an atom.
4.
A row in the periodic table.:
A row in the periodic table.
5.
A column in the periodic table.:
A column in the periodic table.
6.
Atoms of the same element with the same number of protons but different numbers of neutrons.:
Atoms of the same element with the same number of protons but different numbers of neutrons.
7.
An atom that has become charged because it has lost or gained electrons.:
An atom that has become charged because it has lost or gained electrons.
8.
An atom that has equal numbers of protons and electrons.:
An atom that has equal numbers of protons and electrons.
Column B
a.Neutral
b.Period
c.Mass number
d.Atomic number
e.Group
f.Valence electrons
g.Ion
h.Isotopes
a. Neutral
b. Atomic number
c. Mass number
d. Group
e. Period
f. Valence electrons
g. Ion
h. Isotopes