What ions do elements in Group 1 form?

• 1-

• 1+

• 2-

• 2+

What ions do elements in Group 2 form?

• 1-

• 1+

• 2-

• 2+

What ions do elements in Group 3 form?

• 2-

• 2+

• 3+

• 3-

What ions do elements in Group 5 form?

• 2-

• 2+

• 3+

• 3-

What ions do elements in Group 6 form?

• 2-

• 2+

• 3+

• 3-

What ions do elements in Group 7 form?

• 1+

• 1-

• 2+

• 2-

What ions do elements in Group 0 form?

• 1+

• 1-

• they don't usually form ions

• 2-

How do atoms form ions?

• only by losing electrons

• only by losing protons

• only by gaining electrons

• by losing or gaining electrons

Which of the following elements would form an ion with a +1 charge?

• sodium

• magnesium

• aluminium

• fluorine

Which of the following elements would form an ion with a +2 charge?

• sodium

• magnesium

• aluminium

• fluorine