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Fofino [41]
3 years ago
9

Can somebody help me with this please

Chemistry
1 answer:
denpristay [2]3 years ago
3 0

Answer:

He, 2, 2, 2, 4, 4-2=2, 1, 8

I, 53, 53, 53, 127, 127-53= 74, 5, 7

Explanation:

um check the periodic table for the rest?

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