The History of the Modern Periodic Table

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H 1s1
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Li 1s2 2s1 ?????? ??????? ?????
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• 1s1
• 1s22s1
• 1s22s22p63s1
• 1s22s22p63s23p64s1
• 1s22s22p63s23p64s23d104p65s1
• 1s22s22p63s23p64s23d104p65s24d10 5p66s1
• 1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p67
  s1

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S 16e-
2s2
2p6
1s2
3s2
3p4

• ??????? ????????

S 16e- Ne 3s2 3p4
Courtesy Christy Johannesson www.nisd.net/communic
ationsarts/pages/chem
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s
p
1 2 3 4 5 6 7
1s
d (n-1)
6 7
f (n-2)
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A. ???s- B. ??? -d C. ???g- D. ???f-
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• .A ???s-
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• ???f-

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