What is the charge on a magnesium ion?

• 3+

• 2+

• 2-

• 3-

What is the charge on a oxygen ion?

• 3+

• 2+

• 2-

• 3-

What is the charge on a beryllium ion?

• 1+

• 2+

• 0

• 1-

• 2-

What is the charge on a nitrogen ion?

• 3+

• 2+

• 3-

• 1-

• 2-

What is the charge on a sulfur ion?

• 3+

• 2+

• 3-

• 1-

• 2-

What is the charge on a potassium ion?

• 1+

• 2+

• 1-

• 2-

Which of the following represents a sodium ion?

• Na⁻

• Na²⁻

• Na

• Na⁺

How does a chlorine atom become a chloride ion?

• by gaining one electron

• by losing one electron

• by gaining one proton

• by losing one proton

What is the name for an atom that has lost or gained one or more electrons?

• an ion

• an isotope

• an atom

How does a sodium atom become a sodium ion?

• by gaining one electron

• by losing one electron.

• by gaining one proton

• by losing one proton