Question

Which one is the smallest among the following ions Na+,Al+3,Mg+2,Si+4

Answer 1

Answer:

Si+4

Explanation:

all of them have 10 electron in their outermost shell

but no.of electrons are same but no proton which are in nucleus aren't

as a result Si (which has largest no of of electron among given four element )will apply more attarction force on those electrons

thus radius deacrease