Its melting point is 180.5 C, and it boils at 1330 C. The electronic configuration of Lithium is (1s 2)(2s 1). Its atomic radius is 0.155nm, and its (+1) ionic radius is 0.60 nm. At room temperature ...

So, the atomic number also equals the number of ... with each of the three electrons represented by a dot. The electronic structure for lithium is written as a list of numbers separated by commas ...

N. Bohr on the development of the theory of atomic structure, and in particular of the latest form and tendencies of the quantum theory in their relation to mechanics. New points are raised which ...