Chemistry

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

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  3. 10
asked by cake
  1. Ytterbium
    Electronic configuration

    Electronic configuration
    1s22s22p63s23p63d104s24p64d105s25p64f145d106s2

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    posted by cake

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