Question

What is the second lightest element?

Answer 1

1. The second lightest chemical element among all the elements is Helium (He).
2. Helium is considered a noble gas or inert gas because the outermost shell contains complete valence electrons.
3. Thus, there will be no loss or gain in the element.
4. The atomic number of Helium is 2.
5. Helium is found as colorless gas, with no taste and odor.
6. Helium is chemically denoted as follows: