Question

Match each type of bond to the disposition of valence electrons between atoms.

a) Ionic
b) Polar covalent
c) Pure covalent
d) Empty drop zone

a Electrons have been transferred from one atom to another.
b Electrons are being shared unequally between atoms.
c Electrons are being shared equally between atoms.

Answer 1

The disposition of electrons for ionic bonds is a complete transfer from one atom to another. Polar covalent bonds have electrons shared unequally due to differences in electronegativity, while in pure covalent bonds, atoms share electrons equally.

Step-by-step explanation:

To match each type of bond to the disposition of valence electrons between atoms:

1. a) Ionic: Electrons have been transferred from one atom to another.
2. b) Polar covalent: Electrons are being shared unequally between atoms.
3. c) Pure covalent: Electrons are being shared equally between atoms.

In ionic bonds, atoms gain or lose electrons completely to form ions with stable electron configurations, generally between metals and nonmetals due to a large difference in electronegativity. Polar covalent bonds form when there is an unequal sharing of electrons because one atom has a higher electronegativity than the other. Finally, pure covalent bonds occur when electrons are shared equally between atoms, usually seen in diatomic molecules consisting of two identical atoms.