Charges of 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

How many valence electrons does a Sulfur atom have?

• 2
• 4
• 6
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If an element gains 2 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

What charge will a Beryllium ion have?

• +
• 2+
• 2-
• -

Tags

NGSS.HS-PS1-1

anions are _____ ions.

• positive
• negative
• neutral

What charge will a nitride ion have?

• 3+
• 2+
• 2-
• 3-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does magnesium have?

• 1
• 2
• 12
• 24

Tags

NGSS.HS-PS1-1

Group 17 always has ions with a charge of 

• +1
• +2
• -1
• -2