Shells, Subshells, Orbitals

n ? #orbitals #e- Total PERIOD

1 0 s 1 2 2 1 (H, He)

2 0 s 1 2

1 p 3 6 8 2 (Li…Ne)

3 0 s 1 2

1 p 3 6 3 (Na .. Ar)

2 d 5 10 18

4 0 s 1 2

1 p 3 6

2 d 5 10

3 f 7 14 32

n 0..(n-1) (2 ?+1) 2*(2 ?+1) 2n2

etc, for n = 5, 6

? = 0 s

? = 1 p

? = 2 d

? = 3 f

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