Ytterbium, atomic number, 70 is the first element in the periodic table to have the first four shells full.

work out the number of electrons in the fourth shell/ level of ytterbium?

Please show all working out with no abbreviations and please help

1 answer

Ytterbium
Electronic configuration

Electronic configuration
1s22s22p63s23p63d104s24p64d105s25p64f145d106s2