Lewis Dot Structures for Compounds

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

• 2
• 8
• 6
• 18

Hydrogen needs _____ electrons in its valence shell to be stable.

• 4
• 6
• 8
• 2

What is the correct formula for this molecule?

• Si₄F
• SiF₄
• SiF
• Si₄F₄

Covalent compounds

• contain a sea of electrons

• share electrons

• transfer electrons

• conduct electricity

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Is this compound ionic or covalent?

• ionic

• covalent

Metals tend to

• gain electrons

• lose electrons

Three pairs of electrons are shared in a

• Single bond
• Double bond
• Triple bond

• ionic

• covalent

• metallic

• acid

How many valence electrons are shown in the diagram?

• 16

• 7

• 6

• 2