Question

An element X has mass number 27 and it contains 13 protons write the symbolic representation of the elements find the number of neutrons and electrons in the element write the electronic configuration of the element

Answer 1

The element is Aluminium

Symbolic representation: Al

Number of neutrons=Mass number- Number of protons
=23-13
=10

Number of electrons=Number of protons=13

Electronic Configuration: 2,8,3