How many lone pairs of electrons exist on the following molecule?

BF3

How many lone pairs of electrons exist on the following molecule?

BF3

What is the Lewis dot structure for ?

What is the Lewis dot structure for ?

A compound is comprised of sodium and element X. The compound has a molar mass of and is sodium by mass. The compound consists of a 1:1 ratio between sodium and element X. Find the molecular and empirical formulas of the compound, including the identity of element X.

Which of the following compounds contains an atom that does NOT satisfy the octet rule?

I.

II.

III.

IV.

Which of the following compounds contains an atom that does NOT satisfy the octet rule?

I.

II.

III.

IV.

A compound is comprised of sodium and element X. The compound has a molar mass of and is sodium by mass. The compound consists of a 1:1 ratio between sodium and element X. Find the molecular and empirical formulas of the compound, including the identity of element X.

Which answer option correctly depicts the Lewis dot structure of sodium chloride?

Which answer option correctly depicts the Lewis dot structure of sodium chloride?