Chemistry, asked by gFriiih, 1 year ago

1 to 30 periodic element with valency

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Answered by abhirathodcr7p9d8nf
0
1,0,1,2,3,4,3,2,1,0,1,2,3,4,3,2,1,0,1,2,3,4,3,2,1,0,1,2,3,4
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