Covalent Bonding Review

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 difference in electronegativity represents a nonpolar bond?

Back

A nonpolar bond is represented by an electronegativity difference of less than 0.5.

Front

Which atom has only one lone pair?

Back

Phosphorus has only one lone pair.

Front

What is the shape of the NH3 molecule?

Back

The shape of the NH3 molecule is trigonal pyramid.

Front

How many bonds can an atom of oxygen form?

Back

An atom of oxygen can form 2 single bonds or 1 double bond.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the difference between polar and nonpolar covalent bonds?

Back

Polar covalent bonds have an electronegativity difference greater than 0.5, while nonpolar covalent bonds have an electronegativity difference less than 0.5.

Front

What is a lone pair of electrons?

Back

A lone pair of electrons is a pair of valence electrons that are not shared with another atom.

Front

What is the VSEPR theory?

Back

The Valence Shell Electron Pair Repulsion (VSEPR) theory predicts the shape of molecules based on the repulsion between electron pairs.

Front

What is a double bond?

Back

A double bond is a type of covalent bond where two pairs of electrons are shared between two atoms.