C09 Covalent Bonding

A covalent bond forms when atoms ___________ electrons.

• gain

• share

• increase

• transfer

What is the number of valence electrons for Oxygen?

• 8

• 6

• 5

• 1

• 7

Which of the following is the best representation of a molecule of fluorine (F₂)?

• A

• B

• C

• D

What is it called if there are three-pairs of electrons being shared between two atoms?

• Triple Bond

• Three Single Bonds

• Tribond

• Double and Single Bond Combo

Carbon is in 4A, so how many bonds can it form based on electrons needed to fill its outer shell?

• 1

• 3

• 4

• 5

• 6

The number of bonds an element will form in a covalent compound will usually be equal to:

(Mark all that apply.)

• the number of valence electrons

• the number of single electrons in the Lewis structure of the element

• the number of electrons needed to fill its outer shell

• the "A" group number on the periodic table.

• the number of paired electrons in the Lewis structure of the element

What kind of bond does this show?

• Ionic

• Covalent

What kind of bonds are shown here?

• Covalent

• Ionic

What type of bonding does this picture show?

• Ionic

• Covalent

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18