Answer to Question #255082 in General Chemistry for elle

Question

An element has an atomic mass of 59. The atom contains the maximum number of electrons in the first two main energy level. If the atom lacks 2 electrons in the third energy level but contains two electrons in the fourth main energy level determine the number of protons, electrons and neutrons of the atom. Write also the electronic configuration and sketch the orbital diagram of the last shell.

Answer 1

Electron configuration. [Xe] 4f³Â 6s²

Electrons per shell 2, 8, 18, 21, 8, 2