Which ion is smaller in size? Chlorine or Magnesium?
Answers
HELLO MATE
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.