Section 6.2 Quiz Part A

This is a neutral group of atoms that are held together by covalent bonds.

• Molecule

• Ion

• Compound

• Chemical

The length of a covalent bond is determined by

• the balance between attractive forces and repulsive forces between atoms.

• the charges on the bonding ions.

• the number of valence electrons on the metal ion.

• the number of electrons transferred from one atom to the other.

The nuclei of bonding atoms

• repel each other.

• attract each other.

• repel each other's valence electrons.

• transfer protons during chemical bonding.

Which of the following bonds is likely to have the lowest bond energy?

• H-F

• H-Cl

• H-Br

• H-I

Which of the following elements is most likely to violate the octet rule in a covalent bond?

• Selenium

• Neon

• Carbon

• Oxygen

What could be a valid atomic number for the element illustrated as X?

• 15

• 5

• 8

• 20

What is the formal charge on the chlorine in this Lewis structure?

• +1

• 0

• +4

• -1

How many total resonance structures are there for the polyatomic ion shown?

• 3

• 2

• just that one

• 4

Compared to a single bond, a double bond between the same atoms is

• longer

• stronger

• more polar

• less ionic

How many valence electrons are used to draw the Lewis structure for the phosphate ion (PO₄^-3)?

• 32

• 30

• 5

• 48