I think it's framed in the context of: "How dangerous would a single molecule be to a human?". In that context, I would say O is safe, only because our body naturally destroys the radical oxygen molecules every day that we create with our anti-oxidants.
True, in a larger quantity than our body can handle, it's extremely toxic; but a single molecule would probably not be too bad.
But I do agree, it shouldn't be Green. It should be Yellow at least.
O would completely destroy you in lickable quantities. I think you underestimate how extremely reactive it is. Just remember that it is so reactive that it reacts with oxygen to form ozone. This is not a little byproduct in extremely small quantities all throughout the body, which is also not the O radical anyway.
Chemist here: all the reds are correct but it would take so much time to explain why so many of the greens are super concerning. Every time I see this reposted it's so concerning...I should just spend the 17 minutes and save a copy pasta response of everything horribly wrong with this.
You are absolutely fine licking sulfur, it is not going to do anything. In case of a solid block you are not even going to taste anything. Also what the fuck, sulfur is not poisonous, that MSDS is bullshit.
I have elemental magnesium (4 ~50g ingots, I keep it in my library in a barely-sealed ziplock). it's shelf stable and doesn't react violently with water. Want me to try licking it and let you know? (hint: at worst it'll make a minuscule amount of milk of magnesia)
ETA: Would I stick my tongue in pyrophoric magnesium powder? No, and you wouldn't do that with pyrophoric aluminum or zinc powders, either, but that doesn't stop me from using (or licking) alumnum foil. Proof: https://invidious.darkness.services/watch?v=Q_4I30Nz_b0
Elemental mercury isn't very bioavailable so licking the surface of a pool of mercury isn't going to hurt you much if at all. (Assuming you just do it once). Plus the density of mercury is going make it hard for you to slurp up a significant quantity the stuff anyway.
If you want to know about the horrible potential for mercury to mess you up look for stories about dimethyl mercury exposure. Its the fat soluble varieties that give mercury it's reputation.
lol You don’t need a table to tell you whether or not you should like an element. Like ‘em all! Also, whoever made the pic misspelled “like” as “lick”. jsyk.
Not moisture but reactive molecules. (I mean, many forms probably do still absorb a good bit but) I forgot the exact chemistry but "activated" means chemically reactive. It binds with all sorts of reactive molecules, like toxins and many other things.
Same concern. It's even arguable you can only lick solids (and lap liquids). This would make hydrogen a Must Not Lick, for example, if we could only consider solid forms.
Why? Bismuth is pretty harmless from what I can find. It's not great but it's way better than lead (which it replaced in a lot of applications). Based on what I read, bismuth probably wouldn't hurt you if you gave it a lick.
This really feels like we're going to descend into an "is water wet"-style debate. Those are always fun.
I think I'd still consider it a lick even if you just contact one atom of a substance to your tongue. You could even fire it at your tongue with the LHC and I'd still be willing to go along with calling that a lick, using the term very loosely.
I'm less sure on the gas, but fuck it, sure, sticking your tongue into a gas can be a lick between friends. Alternately you could condense/freeze it and lick that form, but that might be worse.
There's no getting away from the idea that it would be very difficult to lick an atom with sub-millisecond half life. Unless... you create it already inside your tongue! I'm sure we could do that somehow. Probably involving magnets.
What's wrong with licking osmium? I know if heated in oxygen it will form osmium tetraoxide which is toxic, but a solid chunk of elemental osmium I thought was inert and I could keep it in my mouth all day if I wanted ( I do).
lead's bad for you, sure, but when some of the other metals on this scale's red might literally explode your tongue/face/head depending on sample size and saliva accumulation, i'd say yellow fits it pretty well.
Nah, metallic lead is pretty solid. Licking it doesn't really do much. You shouldn't ingest lead, but you don't really ingest it by licking a piece of metal.