Element "X" has two electrons in its "M" shell.Identify the element.

In the ground state, an element has 13 electrons in its M shell. The element is

In the ground state, an element has 13 electrons in its 'M' shell. The element is

A trinegative ion of an element has 8 electrons in its M shell. The atomic number of the element is

An element X belongs to the third period of the p- block elements. It has 4 electrons in the outermost shell. Name the element.