Since the atomic nucleus was first proposed in 1911, physicists simply assumed it was round. But are the nuclei of atoms really round? Intuitively this shape makes sense and physicists believed it ...

Gurmeet Kaur is an Education Industry Professional with 10 years of experience in teaching and creating digital content. She is a Science graduate and has a PG diploma in Computer Applications. At ...

This video is an interactive lesson in calculating an atom’s mass and atomic number. Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons in shells. The numbers of ...