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Could I have some explanations on the trends and reasons to this question?How does MgCl2 exhibit covalent properties?How can BeCl2 exhibit such properties when BeO doesn't?

Could I have some explanations on the trends and reasons to this question?How does-example-1
User Warlock
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Answer:

Explanations

Ionic compounds are formed when a metal react with a non metal while covalent bonding occur between compounds containing non-metals.

MgCl2 is therefore ionic compound not covalent due to the large difference in the electronegativity value of the elements.

BeO on the other hand can partially form a covalent compound due to the presence of non-metals.

User Anton Lyhin
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