Classify the bonding in each of the following molecules as...

Classify the bonding in each of the following molecules as ionic, polar covalent, or nonpolar covalent.
a. $\mathrm{H}_{2}$
b. $\mathrm{K}_{3} \mathrm{P}$
c. NaI
d. $\mathrm{SO}_{2}$
e. HF
f. CCl
g. CF $_{4}$
h. $\mathrm{K}_{2} \mathrm{~S}$

Key Concepts

Ionic Bonding

Ionic bonding occurs when electrons are transferred from one atom to another, leading to the formation of oppositely charged ions that attract each other. This type of bond is common between metals and non-metals, where there is a significant difference in electronegativity between the participating atoms.

Covalent Bonding

Covalent bonding involves the sharing of electrons between atoms, allowing each atom to achieve a more stable electron configuration. Covalent bonds are typically formed between non-metal atoms, and the sharing can either be equal or unequal depending on the electronegativity difference.

Electronegativity

Electronegativity is a measure of an atom's ability to attract and hold onto electrons within a bond. The relative electronegativities of atoms in a bond determine whether the bond will be nonpolar covalent (similar electronegativities) or polar covalent (different electronegativities).

Polar Covalent Bonding

Polar covalent bonding occurs when two atoms share electrons unequally due to a difference in their electronegativities. This unequal sharing creates a dipole moment, resulting in partial positive and negative charges on the atoms.

Nonpolar Covalent Bonding

Nonpolar covalent bonding takes place when electrons are shared equally between atoms, usually because the atoms have similar or identical electronegativities. This equal sharing results in a balanced distribution of electrical charge across the molecule.

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