a. Covalent
b. Metals
46.
44. Bonds formed by gaining and losing electrons are called
45.
have 3 or fewer valence electrons.
47.
c. Ionic
d. Nonmetals
48. A
e. Subscript
f. Electrons
tend to gain or take electrons.
bonds are formed when electrons are shared.
bonds.
is used in a formula to tell the number of atoms of an element
in a compound.
49. Chemical reactivity or stability depends on the number of_
outer energy levels.
in the
