Question

an element x have 3 electrons in its outermost orbit a) what will be it's atomic number and number of protons in it b) I write its electronic configuration how we find out atomic number
​

Answer 1

THERE ARE MANY ELEMENTS WHICH HAVE 3 ELECTERONS IN THEIR OUTERMOST SHELL-SOME OF THEM ARE BORON -ATOMIC NO 5. EC-2,3AND IT HAVE 5 PROTNS.ALLUMINUM=13 PROTON.EC 2,8,3,..WE CAN FOUND ATOMIC NO BY NO OF PROTONS IN IT.THANKS.

HOPE IT HELPS U

Answer 2

Answer:

A}

It's atomic no will be 13.

B}

it's electronic configuration will be 2,8,3