Question

In the ground stage,an element has 13 electrons in it's M-shell .What is the name of the element?

Answer 1

the element is vanadium

Answer 2

the element is vanadium because the element has 13 electrons in its M shell which means K L shell are completely filled hence the total electron aquired by K L shell are 2 and 8 respectively plus 13 electrons of M shell hence total 23 electrons and we know that the no of electrons denote atomic no. and 23 is the atomic no. of vanadium