Question

11na,15p,17cl,14si,12mg which of these has largest atoms and why?

Answer 1

Hey mate !!

Here's your answer !!

Let's first write the name of elements according to their atomic number:

11 - Sodium

12 - Magnesium

14 - Silicon

15 - Phosphorus

17 - Chlorine

The largest atoms of these is Sodium.

This is because the outermost shell had only one election due to which the effective nuclear charge of the atom is less. Hence the electron is far from the nucleus due to which it is the largest atom.

Hope my answer helped you !!

Cheers !!

Answer 2

answer is sodium-Na

its electronic configuration is2,8,1