Question

Define a lone pair and give example

Answer 1

Answer:In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond and is sometimes called an unshared pair or non-bonding pair. Lone pairs are found in the outermost electron shell of atoms. They can be identified by using a Lewis structure.

Answer 2

Answer : a lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond and is sometimes called an unshared pair or non-bonding pair

Explanation: ex: Water, Ammonia, hydrogen fluoride. come to mind as the simplest such molecules with lone pairs.

The N in ammonia has 1 lone pair and three bonds (to H).

The O in water has 2 lone pairs and two bonds (to H)

the F in Hydrogen fluoride has 3 lone pairs and one bond.