A chemistry problem by Sangesh Bala

Chemistry Level pending

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What's the next in the series?

Ag Na Pm Fm

Sangesh Bala by Sangesh Bala , 27, India

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2 solutions

The sequence shown is that of elements with the atomic number n 2 n^2 . The element with the atomic number of 100 100 is F m \boxed{Fm} .

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Sangesh Bala
Jun 21, 2014

Fm

H(1) +3 Be(4) +5 F(9) +7 S(16) +9 Mn(25) +11 Kr (36) +13 In(49) +15 Gd(64) +17 Tl(81) +19 Fm (100)

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