How many valence electrons does Lithium (Li) have?

• 8

• 1

• 5

• 2

How many valence electrons does Bromine (Br) have?

• 5

• 6

• 7

• 8

According to the diagram below, how many bonds will this atom be able to make?

• 1

• 2

• 3

• 4

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

• 2

• 8

• 6

• 18

Mathematical Equivalence

ON

Tags

NGSS.MS-PS1-1

How many valence electrons should Beryllium have around its Lewis dot model?

• 1

• 2

• 3

• 4

Is this the correct Lewis Dot Structure for Boron?

• Yes

• No, missing electrons

• No, too many electrons

• No, dots are in wrong place.

Which are the valance electrons?

Tags

NGSS.MS-PS1-1

How many valence electrons does Tin (Sn) have?

• 8

• 7

• 5

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Valence electrons are: 

• Electrons farthest away from the nucleus

• Electrons closest to the nucleus

• Electrons that just come and go - they don't stay with the atom

• Electrons in the second shell