Question

An atom of an element has three electrons in its 3rd orbit, which is the outermost shell.

Write (i)The electronic configuration (ii) Number of protons (iii) Valency​

Answer 1

An atom of an element has three electrons in its 3rd orbit, which is the outermost shell.

An atom of an element has three electrons in its 3rd orbit, which is the outermost shell.Write (i)The electronic configuration (ii) Number of protons (iii) Valency