Question

An element 'X' contains 6 electrons in M.Shell as Valence Electrons:
i) What is the atomic number of 'X'?
ii) Identify whether 'X' is a metal or non-metal.

Answer 1

The atomic number will be 16 and it will be a non metal

Answer 2

The atomic number of X is 16.

X is a non-metal.

• The K shell can accommodate 2 electrons. Similarly, the L shell can accommodate 8 electrons and the M shell can accommodate 18 electrons.
• The element X has 6 electrons in the M shell which means it has 2 electrons in the K shell and 8 electrons in the L shell.
• Thus atomic number is 2+8+6=16.
• Thus, the element is Sulfur and it is a non metal.