Chem elements

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Last updated 10:45 PM on 10/7/26

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1

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Start chain

H-He-Li; 1-3

2

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Long mnemonic

Cats Never Open fridges Neatly. Naughty Magical Aliens Sing poorly. Scary Clever Artists Keep Cats. 6-20

3

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R chain

Ar +18 Kr +2 Sr

4

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Metal Chain

Fe-Co-Ni-Cu-Zn; 26-30

5

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Rank Chain

Cu +18 Ag +18 Au

6

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50’s chain

Tn(50) +3 I +3 Ba

7

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Danger Chain

Hg(80) +2 Pb +10 U