Covalent Bonding Review

Front

What is the IUPAC name for the compound SO2?

Back

sulfur dioxide

Front

What is the molecular geometry of a molecule with four pairs of electrons around the central atom, three shared pairs and one unshared pair?

Back

trigonal pyramidal

Front

What is the IUPAC name of NH3?

Back

nitrogen trihydride

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the significance of Lewis Dot diagrams in covalent bonding?

Back

Lewis Dot diagrams visually represent the valence electrons of atoms and how they are shared or transferred in chemical bonds.

Front

How many valence electrons does nitrogen have?

Back

Nitrogen has five valence electrons.

Front

What is the shape of a molecule with two shared pairs of electrons and no unshared pairs around the central atom?

Back

linear

Front

What is the difference between a polar and nonpolar covalent bond?

Back

A polar covalent bond occurs when electrons are shared unequally between atoms, while a nonpolar covalent bond occurs when electrons are shared equally.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

The bond angle in a tetrahedral molecular geometry is approximately 109.5 degrees.

Front

What is the Lewis Dot structure for water (H2O)?

Back

The Lewis Dot structure for water shows the oxygen atom in the center with two hydrogen atoms bonded to it, and two lone pairs of electrons on the oxygen.