How to Write the Orbital Diagram for Thulium?
Thulium (Tm) has a total of 69 electrons. These electrons are arranged in shells around the nucleus. The detailed configuration shows them distributed across six shells (1s, 2s, 2p, 3s, 3p, and so on) with specific subshells within each shell.
In a simpler notation, we can say that the core electrons are similar to those of the noble gas Xenon (Xe), and the remaining electrons occupy the 4f subshell (13 electrons) and the outermost 6s subshell (2 electrons).
