Ions

Cations are metals that form ____________ ions by __________ electrons.

• negative, losing

• negative, gaining

• positive, gaining

• positive, losing

Anions are nonmetals that form ____________ ions by __________ electrons.

• negative, losing

• negative, gaining

• positive, gaining

• positive, losing

What is the charge of an atom that has lost one electron?

• -1
• -2
• +1
• +2

Tags

NGSS.HS-PS1-7

Which group has a complete outer shell, and will not form ions or bond?

• Alkali Metals
• Transition Metals
• Halogens
• Noble Gases

Group 7 always has ions with a charge of 

• +1
• +2
• -1
• -2

Magnesium ion

• Mg⁺
• Mg²⁺
• Mg^-
• Mg^2-

What happens when phosphorus forms an ion?

• gains two electrons
• loses two electrons
• gains three electrons
• loses one electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What will nitrogen's charge be as an ion?

• +3
• -3
• 0
• -1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is the correct name for CaBr₂?

• Calcium Dibromide

• Calcium bromate

• Calcium Bromide

What is the formula of Sodium oxide?

• NaOH

• NaO₂
• Na₂OH

• Na₂O