Asked by 0oooooooo0

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

a) State the number of electrons in the fourth shell/ level of ytterbium (1)

b)How many orbitals are there in the third shell of ytterbium? (1)


Please help I'm very confused
Answered by DrBob222
See the mnemonic I posted for you above.
Answered by 0ooooooooo0
Thanks for your help so far but I dont know what to write for these questions Drbob222 I only know how to answer clear questions saying "what is the configuration" so please help.
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