Section 8.3 Molecular Structures

Classify the following as a molecular formula or Lewis structure.

Classify the following elements as a metal or nonmetal.

A structural formula shows the arrangement of the atoms in a molecule.

A central atom in a molecule is the one with the highest electron affinity.

Hydrogen can be a central atom.

The number of bonding pairs in a molecule is equal to the number of electrons.

To find the total number of electrons available for bonding in a positive ion, you should add the ion charge to the total number of valence electrons of the atoms present.

The electrons in a coordinate covalent bond are donated by both the bonded atoms.

Resonance occurs when more than one valid Lewis structure can be written for a molecule.

All resonance structures have at least one double bond.

Ozone is an example of a molecule that forms a resonance structure.

The carbon dioxide molecule contains two double bonds.

All electrons in an atom are available for bonding.

When carbon and oxygen bond, the molecule contains ten pairs of bonding electrons.

The formula for the nitrogen element is N₂.

Rearrange so that each statement matches with the appropriate molecule.

Extra Credit Review: name the following acid H₂SiO₃

Extra Credit Review: name the following acid H₂S

Extra Credit Review: name the following acid H₂C₂O₄

How many bonded pairs?

How many lone pairs?

How many lone pairs?

How many bond pairs?

How many bond pairs?

How many lone pairs?

How many lone pairs?

How many bond pairs?