#promethium

[element-tournament]

FINALS

CARBON:

Forms the basis of all life

What diamonds, coal, and pencil lead are made of

Used to make graphene, one of the strongest materials (one atom of thickness is 200x stronger than steel)

SILICON:

Not to be confused with Silicone

Could potentially be used to make life instead of carbon

Used in a lot of electronics, hence the name of silicon valley

ARGON:

Has a distinctive purple glow

used in neon signs

often mistaken as a pirate's favorite element

POTASSIUM:

Found in high quantity in bananas

burning it produces a light purple or red flame

the first metal to be discovered by electrolysis

STRONTIUM:

Used in cancer treatment

Used in toothpaste

The most accurate atomic clock (to one second in the 200 million years) uses strontium atoms

FLOURINE:

the most receptive and most electronegative of all the chemical elements

oxygen, helium, neon, and argon are the only elements fluorine can't react with

the only element that can react with noble gases, specifically xenon, krypton, and radon

BISMUTH:

the most diamagnetic metal (meaning it gets repelled by magnets instead of attracted)

Known for its unique shape and colorful style

PROMETHIUM:

the last lanthanoid to be discovered

PLUTONIUM:

Named after the dwarf planet Pluto

Was once thought to have been discovered by Enrico Fermi along with element 93, but he was actually mistaken. He named it Hesperium.

An unnaturally poor conductor of electricity

Used to make atomic bombs, even more powerful than uranium

Known by some as the "forbidden gummy"

COBALT:

Turns a vibrant blue when heated to extreme temperatures

Named after kobolds, who are "mythical, death-dealing goblins" (not the lizard kobold)

One of only three elements that are ferromagnetic at room temperature

#element #periodic table #periodic table of elements #poll #polls #tournament #elements #carbon #silicon #argon #potassium #strontium #flourine #bismuth #promethium #plutonium #cobalt

[fuck-the-periodic-table]

Round 10 - F-Block Part 1

#polls #periodic table #chemistry #lanthanum #cerium #praseodymium #neodymium #promethium #samarium #europium #gadolinium #terbium #dysprosium

[sodiumlamp]

This video is a very good summary of the reasons why some chemical elements have no stable isotopes, and why the most recently discovered elements have had to be produced synthetically. 

In particular, the elements corresponding to atomic numbers 43 and 61 were gaps in the periodic table for a long time, because they have stable isotopes.   Technetium and promethium were eventually discovered, but only by transmuting other elements into them.  While Tc and Pm are formed in stars, just like other naturally occurring elements, any natural Tc and Pm on the Earth would have decayed into other elements a long time ago, so there’s none left to find.

The same holds true for the transuranic elements, i.e., the ones heavier than uranium.  Those all had to be discovered synthetically as well, and I think that’s easier to understand because they represent this outer fringe of nature.  Bigger atomic nuclei are just harder to keep together for any practical length of time.  But techentium and promethium don’t have that problem, so why do they have no stable isotopes?

The answer has to do with rules surrounding atomic nuclei, and while these aren’t fully understood, we know enough to understand that certain numbers of protons and neutrons in an atomic nucleus are more stable than others.  Odd numbers of protons, for example, are less favorable than evens.   That’s why uranium (Z=92) lasts longer in nature than neptunium (Z=93).  Elements with odd numbers of protons can still work though, if there’s a small enough number, or if there’s enough neutrons to compensate, or if... some other stuff I’m not sure I understand. 

The problem with technetium and promethium, though, is that an atomic nuclei with 43 or 61 protons is just an untenable situation.  They’re odd numbers, for one, but they’re also odd numbers that happen to make all the other rules unfollowable.  It doesn’t matter what number of neutrons there are in these guys, because you end up breaking too many stability rules.  So that means no stable isotopes.  They talk about “magic numbers”, and it’s mentioned in the above video too, and I want to say 43 and 61 are called “anti-magic numbers” in nuclear physics, but I might be misremembering this. 

Anyway, this was always something I’ve been interested in, and sort of vaguely understood, but not well enough to explain, so I’m pleased that PBS could cover it so elegantly.

#chemistry #promethium #technetium

[periodictabletournament]

Round 2 - Matchup 6

Silver 47 (Ag) - The Most Conductive. Will conduct heat. Will conduct electricity. Shiny and pretty and good for jewlery and utensils (silverware!) and other such things that you might want to look fancy.

vs

Promethium 61 (Pm) - The kind of radioactive that can make luminous paint, which is useful sometimes. Mostly it's hard to get and will kill you.

#Silver #Promethium #periodic polls #tournament polls

[some-random-wolf-with-internet]

Promethium dragon bust

#dragon #dragon vale #dragonvale #my art #promethium dragon #promethium #dragon art #vale

[fuckableelementspoll]

Round 1.2: Promethium (61) vs. Thorium (90)

Promethium (61)

Promethium is an extremely rare and radioactive element named for the ancient greek fire-origin myth of Prometheus. Promethium is unique for being one of two elements that all isotopes are radioactive below atomic number 82, the other being Technetium. Due to it's instability Promethium has few uses, mainly being used in phosphorescent substances. A unique and glowing dalliance.

Thorium (90)

Thorium is a silvery radioactive metal named after the ancient nordic god, Thor. Despite being radioactive, Thorium is very stable with a common isotope having a half-life of 14 billion years. Thorium is soft, malleable, and reactive, oxidizing readily in air. Thorium was used in radiometric dating, aromatics, gas mantles, welding, and nuclear power, although in modern times it has been mostly phased out. Modern applications are mainly, radiometric dating and certain glasses, although plans to use it in nuclear power are still being drafted. A more stable and less known cousin to Uranium if that tickles your fancy (literally maybe).

#fuckable elements poll #promethium #thorium #a god's duel #what better thing to link than numbers

[legiopraesagio]

Did you know it actually exists? I didn't. My daughter told me after her chemistry class. It's a pity that it's extremely rare, with only about 500–600 grams naturally occurring in Earth's crust at any given time. So I can't inform Elon Musk that he should use it as a spaceship fuel.

#warhammer #promethium #i was so close

[i-saw-your-chanel-boots]

#periodic table poll #periodic table of elements #promethium #platinum #polls #bracket poll #chemistry #science #round 1 #branch c

[classicalshorts]

The Titan of Elements

Promethium (Pm): So, finally in this series, we come to the Titan element, and, yes, it is significant that this element takes its name from the titan Prometheus. It is a highly radioactive metal and is a member of the lanthanides (yes, the elements that ‘lay hidden’, a property shared by Lanthanum, the first in this article). It is no accident that this powerful, but volatile, element is named after the titan who stole fire for mortals’ benefit…and destruction. It reflected the fears felt over its possible misuse by humans and was suggested by Mary Coryell, wife of one of the element’s discoverers, Charles D. Coryell. Humans can use and they can abuse. The name is thus rather aptly applied to a potentially dangerous atomic element.

#classics #education #learning #derivatives #ancient greek #latin language #periodic table #lanthanum #selenium #tellurium #promethium #chalcogen #lanthanides #prometheus #titan

[rs3outfits]

#rs3 #runescape #red #promethium #dungeoneering #fox jacket

[haaaaaaaaaaaave-you-met-ted]

Necromunda Promethium Guilder by Thomas Elliott

#Warhammer #40k #Necromunda #Promethium Guilder #Sci-Fi #Thomas Elliot #Games Workshop

[element-tournament]

LANTHANOIDS: ROUND 3 POLL 1

LANTHANUM:

The first Lanthanoid, thus being the element the category is named after

a metal so soft it can be cut with a butter knife

PROMETHIUM:

the last lanthanoid to be discovered

#element #periodic table #periodic table of elements #poll #polls #tournament #elements #lanthanum #promethium

[anime-captured]

#galaxy express 999 #ginga tetsudou 999 #galaxy express 999 the signature edition #la andromeda promethium #leijiverse #anime movie #1979 anime #g anime

[mimmixerenard]

Leijiverse favourites, drawn in a retro cartoon style

From up left to up right: Bruce J Speed, Owen (Galaxy Railways), Bernbarrel, Commander Leopard (Space Symphony Maetel)

From middle left to middle right: Ze Faultana Violencia (Submarine Super 99), La Andromeda Promethium, Maetel (frankly, a lot)

And the two in front: Harlock (a lot too) and Warrius Zero (Cosmowarrior Zero)

#leijiverse #galaxy express 999 #maetel #space symphony maetel #captain harlock #harlock #endless orbit ssx #the endless odyssey #the galaxy railways #cosmowarrior zero #warrius zero #submarine super 99 #queen promethium #bruce j speed #commander leopard #fanart #leijiverse fanart

[periodictabletournament]

Round 1 - Part 1 - Matchup 9

Promethium vs Praseodymium

#periodic polls #promethium #praseodymium

[sapphirecatgirl]

𝓔𝓿𝓮𝓷 𝓲𝓯 𝓘 𝓼𝓽𝓪𝓷𝓭 𝓪𝓵𝓸𝓷𝓮, 𝓘 𝔀𝓲𝓵𝓵 𝓭𝓮𝓯𝓮𝓷𝓭 𝓽𝓱𝓮 𝓔𝓪𝓻𝓽𝓱. 𝓝𝓸𝓽 𝓪 𝓼𝓲𝓷𝓰𝓵𝓮 𝓛𝓪 𝓜𝓮𝓽𝓪𝓵𝓵𝓲𝓪𝓷 𝔀𝓲𝓵𝓵 𝓼𝓮𝓽 𝓯𝓸𝓸𝓽 𝓱𝓮𝓻𝓮. Queen Andromeda Promethium Cosplay by me, wig is a Le Tigre from @ardawigs Photo shot by @bokehnohero

#Queen millenia #Yukino yayoi #leiji matsumoto #La andromeda Promethium #leijiverse #cosplay #Katsucon #cosplay photography #Anime Convention #Katsucon 2022