Unit 7: Covalent Bonds

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two nonmetal atoms share one or more pairs of electrons.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

Name a common example of a covalent compound.

Back

Water (H2O) is a common example of a covalent compound.

Front

What types of elements typically form covalent bonds?

Back

Covalent bonds typically form between nonmetals.

Front

How many valence electrons does carbon have?

Back

Carbon has 4 valence electrons.

Front

What is the VSEPR theory?

Back

VSEPR theory (Valence Shell Electron Pair Repulsion) is a model used to predict the geometry of individual molecules based on the repulsion between electron pairs.

Front

What is the molecular shape of methane (CH4)?

Back

The molecular shape of methane (CH4) is tetrahedral.

Front

What is the difference between a single, double, and triple bond?

Back

A single bond involves one pair of shared electrons, a double bond involves two pairs, and a triple bond involves three pairs of shared electrons.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of bond where electrons are shared unequally between two atoms, resulting in a molecule with a slight electrical dipole moment.

Front

What is the significance of electronegativity in covalent bonding?

Back

Electronegativity is a measure of an atom's ability to attract shared electrons; it helps determine the type of bond (polar or nonpolar) formed between atoms.