Covalent Bonding Review

What is a valence electron?

• an electron that is found in the outermost shell of an atom. 
• an electron found in the innermost shell of an atom.
• an electron found in the middle shell.

How many electrons can the first shell hold?

• 2

• 4

• 6

• 8

How many valence electrons does Lithium (Li) have?

• 8

• 1

• 5

• 2

How many valence electrons does Tin (Sn) have?

• 8

• 7

• 5

• 4

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

Which of the following has a full valence shell?

• Oxygen
• Neon
• Barium
• Carbon

This is a correct dot diagram for neon (Ne)

• true

• false

Tags

NGSS.MS-PS1-1

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

• 2
• 8
• 6
• 18

Choose the correct Lewis Dot diagram for NH3.

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

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

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1