Che

posted 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

  1. DrBob222

    See the mnemonic I posted for you above.

  2. 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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