PS Ionic Formulas Practice

What are the electrons in the highest energy level of an atom called?

• orbital electrons
• valence electrons
• anions
• cations

How many valence electrons does a bromine atom have?

• 1
• 2
• 6
• 7

What types of ions do nonmetals form?

• cations by gaining electrons

• anions by gaining electrons

• cations by losing electrons

• anions by losing electrons

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

• -1
• -2
• +1
• +2

The formula of this atom when it becomes an ion would be

• N^-2
• N⁺³
• N^-3
• N⁺²

Which of the following will form an ion with a 2- charge?

• Ca
• Se
• Ge
• N

Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

What type of ions do metals form?

• cations by losing electrons

• anions by losing electrons

• cations by gaining electrons

• anions by gaining electrons

Na ⁺  and  S ^-2

• Na₂S
• NaS₂
• Na₂S₂
• NaS

What charge does a calcium (Ca) ion have?

• +1
• +2
• +3
• +4