Question

How to find if the given element is a non -metal if the electronic configuration is given?

Answer 1

by seeing the outmost shell of the element

Answer 2

$\huge\star\mathfrak\red {{ANSWER }}\star$

Generally the elements with three or less electrons in the outer shell are considered to be metals and those with five or more electrons in the outer shell are considered to be non-metals. we may find some exceptions to this.