Valence electrons

Which is an electron?

• A
• B
• C

How many electrons go in the first shell (ring) ?

• 6

• 8

• 4

• 2

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

• 3

• 4

• 5

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.

Which of these is incorrect?

• 
• 

Which of these is correct?

• 
• 
• 

Which element is this?

• Nickel

• Neon

• Sodium

• Nitrogen

Name this element.

• Neon

• Magnesium

• Sodium

• Manganese

What is this element?

• Beryllium (atomic #4)

• Boron (atomic #5)

• Carbon (atomic #6)

• Nitrogen (atomic #7)

How many valence electrons?

• 2

• 3

• 4

• 5