# amidogen

## English

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### Etymology

amide +‎ -o- +‎ -gen.

### Noun

amidogen (plural amidogens)

1. () The amino radical, •NH2, the neutral form of the amide ion −NH2, regardable as the ammonia molecule with one of its hydrogen atoms removed.
Chemical formulae: ${\displaystyle {\ce {NH2}}}$, ${\displaystyle {\ce {*NH2}}}$,${\displaystyle {\ce {{\dot {}}NH2}}}$, ${\displaystyle {\ce {{\dot {N}}H2}}}$, ${\displaystyle {\ce {NH2*}}}$
Ammonia is commonly called a base. It is more correct to call it a SALT, and to consider its components to be the radical amidogen ${\displaystyle {\ce {NH2}}}$, and the radical hydrogen ${\displaystyle {\ce {=\ H}}}$.
Again, if in phosgene gas ${\displaystyle {\ce {COCl2}}}$, we replace the two atoms of chlorine by peroxide of hydrogen, we obtain carbolic acid; whereas if we replace them by amidogen we get urea, as shown in the second line of the table.