elemental rule

Stamets@lemmy.world to 196@lemmy.blahaj.zone – 583 points –
19

That's 0 milligrams. 0 magnesium would be "0 Mg" (pay attention to capitalisation). Or even "0mg Mg".

But but but 0 Mg would mean 0 megagrams! Capitalization doesn't fix the ambiguity!!1!

0mg is unambiguous. 0Mg has the two options. The issue is just that the OP is wrong (well, partially right but not what they wanted).

Instead of arguing about 0Mg vs 0mg - use the best of both and upset everyone: 0ᴍg

youve heard of uppercase and lowercase, meet middlecase

Mg: 0 mg

IUPAC convention needs a space between number and unit. You can only omit the space for % or degrees.