Unit 6

How many electrons are in the S-Orbital

• 2

• 4

• 6

• 8

How many electrons are there in the P orbital

• 2

• 4

• 6

• 8

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 element has electronic configuration of 1s2 2s2 2p6 3s2 3p2

• C

• Si

• Mg

• Be

Whta is the electronic configuration for V atom?

• [Ar] 4s2 4d2

• [Ar] 4s2 3d2

• [Ar] 4s2 4d3

• [Ar] 4s2 3d3

The valence electron for Li atom is located at which orbital?

• 1s

• 2s

• 2p

• 2d

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

• 3

• 4

• 5

How many valence electrons does Tin (Sn) have?

• 8

• 7

• 5

• 4

How many valence electrons does Lithium (Li) have?

• 8

• 1

• 5

• 2

How many valence electrons does Bromine (Br) have?

• 5

• 6

• 7

• 8