Help with Identifying the group in ionic compund formulas

AI Thread Summary
In the discussion, the user is trying to identify the group number for the element X in the ionic compounds MgX, XCl2, and XF2. They correctly identified X as belonging to group 16 for the first compound but are confused about the group for the other two, initially thinking it might be group 1. The user notes that X must balance two negative charges in the second and third compounds, indicating a need for further analysis of X's valence. Clarification on the correct group for X in these formulas is sought, emphasizing the importance of charge balance in ionic compounds. Understanding the valence and charge requirements is crucial for correctly identifying the group of X.
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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What must be X valence?
 
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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