Help with Identifying the group in ionic compund formulas

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NickP717
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Homework Statement




Identify the group to which X belongs in each ionic compound formula. Enter your response using the group number.

a) MgX
b)XCl2
c) XF2

Homework Equations





The Attempt at a Solution



The first one I figured out was group 16. However, the next two I thought were group 1, but I keep getting the wrong answer. Help anyone?
 

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NickP717 said:

Homework Statement




Identify the group to which X belongs in each ionic compound formula. Enter your response using the group number.

a) MgX
b)XCl2
c) XF2

Homework Equations





The Attempt at a Solution



The first one I figured out was group 16. However, the next two I thought were group 1, but I keep getting the wrong answer. Help anyone?

Its got to balance two negative charges so...
 

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