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    What does this mean by and can u please answer it:

    Understanding of atomic orbitals, including the number of orbitals making up s-, p-, and d-sub-shells, and the number of electrons that can fill s-, p- and d-sub-shells.

    This is from the new a-level chemistry specification 2.2.1 (b)(iii) page 18
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    energy levels = 1 2 3 4 etc
    subshells = s p d f

    each subshell can hold a certain number of electrons:
    S = 2
    P = 6
    D = 10
    F = 14

    and then each orbital has 2 electrons

    Therefore there is one orbital in the s subshell, 3 orbitals in the p subshell, 5 orbitals in the d subshell, and 7 orbitals in the f subshell

    I just included f because although it didn't say about it on my spec they had a question on it in the exam
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    (Original post by Frank Peters)
    What does this mean by and can u please answer it:

    Understanding of atomic orbitals, including the number of orbitals making up s-, p-, and d-sub-shells, and the number of electrons that can fill s-, p- and d-sub-shells.

    This is from the new a-level chemistry specification 2.2.1 (b)(iii) page 18
    For energy levels 'n' (1, 2, 3 etc)

    There are 'n' sub-shells, labelled l=0, l=1, l=2 etc

    Each sub-shell has 2l+1 orbitals
 
 
 
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