Question

Which ion is smaller in size? Chlorine or Magnesium?​

Answer 1

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$<marquee>♥CHLORINE IS SMALLER ION♥</marquee>$

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Answer 2

Hey !

Answer:

The correct answer is Magnesium.

Explanation:

As you know, the ions with a lesser number of shells will get more attracted to the nucleus of the ion, thereby reducing the total size of the atom.

Electronic configuration of magnesium- 2,8,2 (i.e. 3 shells) , but when the 2 is donated to make it an ion(stable), there will be 2 shells.

Electronic configuration of chlorine- 2,8,7( i.e. 3 shells), when 1 is added to make the last shell an octet, the final number of shells will be 3 shells.

2 shells is lesser than 3 shells.

Magnesium is lesser than chlorine.

Since magnesium has the lesser number of shells, it will get more attracted to the nucleus, as it pulls the shells closer to it with a greater force. Thus, the Magnesium ion is smaller in size.