Compare XKCD.

Everything that isn't green should be 'definitely not' and several green ones are questionable

It's 100% accurate. But just in case, could you have the map on you when you go around licking things? The resultant news article will be way funnier that way.

You can totally lick Sodium! Its natures poprocks!

Na: bad. Cl: bad. NaCl: amazing!

Some of the purple ones have a time limit to lick them before you die that starts once you enter the room they are kept. You'll still die after licking them, but you would at least have licked it if you're quick.

Pshh. You can lick any of them once.

You can lick everything, but some only one time

If you can get your tongue inside the machinery they use at Lawrence Livermore to create a split-second instance of some rare Earth actinide, you deserve to lick it.

Okay if you think licking lead and uranium is maybe not a good idea then I think you need to reevaluate your decision making skills.

If lead is "maybe not a good idea", the rest of these must be really bad ideas. I like that there's still 2 more levels above lead. I assume the second level just explodes or vaporises you instantly or something.

Can you lick a gas? I would think it would need to be at least liquid, and once some of these are in a lickable state you probably wouldn't want to go ahead and do it.

It’s really funny, yesterday I saw a dude walk around with a T-shirt with exactly this periodic table and thought it was hilarious and now I find this

The periodic table is surprisingly lickable.

Licking calcium is fine?

I guess if you're okay with the nasty burn...

Licking calcium is a bad idea (it reacts with water). Licking phosphorus is really dependent on its form. Red phosphorus is okay, white phosphorus is a painful death.

Can you lick a gas? Or do you have to cool it down until liquid?

If you find enough oganesson to lick, you should get to do it

why is it fine to lick calcium? wouldn't that cause sever burns?

I wouldn't advise licking calciums:

The chemistry of calcium is that of a typical heavy alkaline earth metal. For example, calcium spontaneously reacts with water more quickly than magnesium but less quickly than strontium to produce calcium hydroxide and hydrogen gas. It also reacts with the oxygen and nitrogen in air to form a mixture of calcium oxide and calcium nitride.[14] When finely divided, it spontaneously burns in air to produce the nitride. Bulk calcium is less reactive: it quickly forms a hydration coating in moist air, but below 30% relative humidity it may be stored indefinitely at room temperature.[15]

Because calcium reacts exothermically with water and acids, calcium metal coming into contact with bodily moisture results in severe corrosive irritation.[59] When swallowed, calcium metal has the same effect on the mouth, oesophagus, and stomach, and can be fatal.[46] However, long-term exposure is not known to have distinct adverse effects.[59]

https://en.wikipedia.org/wiki/Calcium

Because of vigorous reaction of quicklime with water, quicklime causes severe irritation when inhaled or placed in contact with moist skin or eyes.

https://en.wikipedia.org/wiki/Calcium_oxide

I posted this a long time ago. Got sent Cody's Labs list, and it was very different. He has licked so many...

Technetium really should be purple. The isotope that you'd be most likely to get some of (used for nuclear medicine) has a half-life of about 6 hours, and is appropriately radioactive.

I'm wearing that picture on a shirt right now!

The good version of this says "see you on the other side".

How many licks to get to the center of a sodium lollipop