When should we speak of hydrogen atoms rather than hydrogen molecules....?

1 Answer
anor277
Jul 11, 2017

When the circumstances demand it. You have the same mass of hydrogen in either scenario.........

Explanation:

Chemists sometimes speak of "dihydrogen" in order to distinguish this from "ATOMIC hydrogen". In either scenario you have differentiate between "dihydrogen gas" and "atomic hydrogen".....i.e. you yourself specify the molecularity.

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