6.4 Oxidation States

Do the elements in group 13 form cations or anion?

• Cations
• Anions

Ions from the halogen group form what oxidation state?

• +1
• -1
• -7
• +7

What charge would a sulfur ion have?

• -6
• -16
• +2
• -2

What charge would a hydrogen ion have?

• +1
• -1
• +2
• -2

What charge would a barium ion have?

• +3
• -2
• +2
• +1

This element has the same number of electrons as a chlorine ion.

• Argon
• Nitrogen
• Sulfur
• Krypton

How many electrons does a copper ion, Cu⁺², have?

• 29
• 31
• 27
• 2