Please tell me the answer to the following question and if you can please explain it, if you will I'll vote your answer the brainliest and you'll receive more points. Thank you!

Which of the following pairs of elements is least likely to form an ionic compound?

1.) Calcium and Bromine

2.) Sodium and Fluorine

3.) Lithium and Chlorine

4.) Magnesium and Argon

Question

01-12-2015
Chemistry

Answered

Please tell me the answer to the following question and if you can please explain it, if you will I'll vote your answer the brainliest and you'll receive more points. Thank you!

Which of the following pairs of elements is least likely to form an ionic compound?

1.) Calcium and Bromine

2.) Sodium and Fluorine

3.) Lithium and Chlorine

4.) Magnesium and Argon

Verified Answer :

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darkdragonex darkdragonex · Answer 1 · 2015-12-01T20:45:30-05:00

First you need to know how ionic compounds are created!

Ionic compounds are formed by IONS (Obviously, what am I, a dummy?)
There are two types of ions: anions and cations.
Anions can only be formed by nonmetals, and cations can only be formed by metals.
In order for ions to bond, there must be one anion and one cation, because opposite charges attract.

Let's look at your choices.

1) Ca + Br can form ionic bonds
2) Na + F can form ionic bonds
3) Li + Cl can form ionic bonds

However...

4) Mg + Ar

This is a special case. Ar is a NOBLE GAS, which means that it has the maximum number of valence electrons (8) in its outermost shell. Therefore, ANY type of bonding is IMPOSSIBLE.

Your answer should be 4) Mg + Ar