Predicting Charge of Main Group Elements

If an atom has 3 valence electrons, what charge will it have as an ion?

• +3

• -3

• +5

• -5

If an atom gains 3 electrons, what charge will it have as an ion?

• +3

• -3

• +5

• -5

If an atom has 1 valence electron, what charge will it have when it becomes an ion?

• +1

• -1

• +7

• -7

If an element gains 2 electrons, what charge will it have when it becomes an ion?

• +2

• -2

• -6

• -6

How many valence electrons does a Sulfur atom have?

• 2

• 4

• 6

• 7

If an atom has 6 valence electrons, what charge will it have when it becomes an ion?

• +2

• -2

• +6

• -6

If an atom has 2 valence electrons, what charge will it have when it becomes an ion?

• +2

• -2

• +6

• -6

If an atom loses 2 valence electrons, what charge will it have as an ion?

• +2

• -2

• 0

• +8

If an element gains 1 electron, what charge will it have?

• +1

• -1

• +7

• -7

Valence electrons are those electrons that are...

• closest to the nucleus.

• freely floating between atoms.

• farthest from the nucleus

• unable to become involved in chemical bonding.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2