Covalent and Metallic Bonding Practice

Outer shell electrons are called

• outer electrons
• valence electrons
• negatives

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Which of the following is NOT formed by a covalent bond?

• K₂S
• H₂O
• I₂
• CO₂

What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?

• Ionic
• Polar Covalent
• Nonpolar Covalent

A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?

• 1
  1
• 3
• 4
• 6

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

• 2

• 4

• 6

• 8

• 10

How many valence electrons does Oxygen Have?

• 4 Valence electron

• 5 Valence electron

• 6 Valence electron

• 7 Valence electron

• 8 Valence electron

Is this the correct Lewis Dot Structure for Boron?

• Yes

• No, missing electrons

• No, too many electrons

• No, dots are in wrong place.

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?

• 1
  1
• 3
• 4
• 6