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Plz xplain last question ... the answer given is b ... shouldn`t it be c ??

Plz xplain last question ... the answer given is b ... shouldn`t it be c ??

Question Image
Grade:11

1 Answers

Umakant biswal
5359 Points
5 years ago
@ navdeep
Because of octet rule in stable electronic arrangement, Berilium will make 2+ cation. But because of it's tiny radius it can't handle this charge.. 
IN CONTRAST TO THAT , carbon have a radius that it can hold 4 electrons in its valence shell , and it do forms the bonding rather than donating and accepting the electrons . 
so.due to that reason , berilium is least stable than carbon , (tiny radius ) 
HOPE IT CLEARS YOUR DOUBT 

all the best ..

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