Ions

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge

When an atom loses a valence electron, it becomes a(n) _____________ ion.

• positive
• negative
• neutral
• polyatomic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Negative ions form when atoms _________ valence electrons.

• lose
• gain
• share

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What will nitrogen's charge be as an ion (What is the charge of the nitride ion)?

• +3
• -3
• 0
• -1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons will a neutral potassium atom lose to become stable?

• 1
• 2
• 8
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many total electrons does O^-2 (an oxide ion) have?

• 8
• 10
• 6
• 18

Tags

NGSS.HS-PS1-1

How many total electrons does Mg⁺² (a magnesium ion) have?

• 10
• 12
• 14
• 22

Tags

NGSS.HS-PS1-1

How many total electrons does Na⁺¹ (a sodium ion) have?

• 10
• 11
• 12
• 22

Tags

NGSS.HS-PS1-1

Cations are

• positive
• negative
• on the right side of the periodic table.
• nonmetals

Tags

NGSS.HS-PS1-1

What charge will an oxide ion have? 

• +1
• -1
• +2
• -2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2