Gurmeet Kaur is an Education Industry Professional with 8 years of experience in teaching and creating digital content. She is a Science graduate and has a PG diploma in Computer Applications.

This shows that lithium atoms have three electrons, two in the first shell and one in the second shell. Sodium has 11 ... an atom must gain or lose to achieve the same electronic structure as ...

Norman Campbell discusses the problem of the possible consistency of the assumptions about the motion and arrangement of electrons in the atom underlying ... theory of atomic structure, and ...