tigerstar34 tigerstar34

11-08-2017
Chemistry

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Which of these elements is a metal? hafnium (Hf) radon (Rn) silicon (Si) sulfur (S) selenium (Se) NextReset

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Brainless32 Brainless32

11-08-2017

Hafnium (Hf) is a metal

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Maxllas Maxllas

12-08-2017

Only Hafnium is a metal

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