Question

Give the symbol for the element that has an electron configuration of 1s22s22p63s23p4.

Answer 1

Answer: The symbol for the given element is S.

Explanation:-

Sulphur is an element with atomic number 16 and thus contain 16 electrons. It is a p block element as the last electron enters the p orbital. The nearest noble gas is Neon with 10 electrons.

The electrons are filled according to Afbau's rule in order of increasing energies and thus the electronic configuration is:  

$S:16:1s^22s^22p^63s^23p^4$

The electronic configuration of sulphur in terms of noble gas is :

$S:16:[Ne]3s^23p^4$

Answer 2

The answer is S (Sulfur)