Who, what, and where are the elements named after?: Part 2

I’m so glad that you’re back. The incident with the kitchen whisk is now behind us, and all is forgiven. And speaking of forgiveness, I have to plead for forgiveness, because it’s been a while since I published a blog post about the Period Table.

I have the time to explain this, so I will. In my infinite wisdom, I have decided to embark on another ill-conceived project: to explain where the names of the 118 elements that sit on the coolest table in the universe come from.

My first chapter was about discussing the elements that have been named after real people. Because that was such a great success, this chapter will be discussing the elements that have been named after objects, in particular, cosmic objects. Like before, I’m not going to present these elements in alphabetical order, because that would be too easy. No, I’m going to list them in the order you would find them on the Periodic Table.

Get ready for some more interesting pieces about history, chemistry, and astronomy. Prepare yourselves!


Image by Elchinator from Pixabay

Helium (He): The Sun

Helium is quite special, because it’s the second element on the Periodic Table. It’s a noble gas, and it was discovered in 1868 by Norman Lockyer, then isolated by William Ramsay, Per Teodor Cleve, and Abraham Langlet in 1895. Helium was the first and only element to be identified outside of Earth, which was through observations and spectral analysis of the Sun.

Since helium was discovered in our local star, Lockyer named the new element after the word Helios, which is derived from the Greek word for the Sun. Helios was also the Greek god of the Sun.

Credit: NASA

Selenium (Se): The Moon

Selenium is the first and only element on today’s list that fits into the Non-metal group on the Periodic Table. Because of this, it’s the 34th element on the table. It was discovered in 1817 by Jöns Jacob Berzelius, and possibly, Johann Gottlieb Gahn as well, though that’s difficult to accurately state.

The Greek word for the Moon is Selene, but it’s also the name of the Greek Goddess of the Moon. Berzelius named Selenium after the Moon; however, just like the Sun, an argument could be made that it’s actually named after a deity.

The Moon, the best name for any moon in the universe. Credit: Airwolfhound/FlickrCC BY-SA 2.0

Palladium (Pd): Pallas

Palladium is the 46th element on the Periodic Table, which places it in the Transition Metals group. In 1802, it was discovered by William Hyde Wollaston, an English chemist, who also discovered osmium and rhodium.

Between the orbits of Mars and Jupiter is a region of our Solar System called the Asteroid Belt. Wollaston named Palladium after an asteroid that was located in it, Pallas, and just like Palladium, it was discovered in 1802. Pallas is the third-largest asteroid in our Solar System. Represent.

An image of the asteroid Pallas captured by the European Southern Observatory’s Very Large Telescope. (Image credit: ESO/Vernazza et al.)

Tellurium (Te): Earth

Tellurium is a metalloid and the 52nd element on the Periodic Table. Like several other elements, it was discovered and isolated by different individuals. Tellurium was discovered by Franz-Joseph Müller von Reichenstein in 1782, but isolated in 1798 by Martin Heinrich Klaproth.

The name Tellurium comes from tellus, the Latin word for Earth; so essentially, tellurium is named after our home planet, Earth.

A NASA camera aboard the Deep Space Climate Observatory satellite caught this view of Africa and the entire sunlit side of Earth on July 9, 2015. (Image credit: NASA)

Cerium (Ce): Ceres

For this entry, we have Cerium, which is the 58th element on the Periodic Table. It can be found lounging around with the other Lanthanoids, and it was discovered by Martin Heinrich Klaproth, Jöns Jakob Berzelius, and Wilhelm Hisinger in 1803, but was first isolated by William Francis Hillebrand in 1875.

Within the Asteroid Belt, we can find the dwarf planet Ceres, which cerium was named after. Ceres was discovered in 1801, just two years before cerium was identified.

An image of dwarf planet Ceres captured by NASA’s Dawn mission.  (Image credit: NASA)

Mercury (Hg): Mercury

Mercury is the 80th element on the Periodic Table, and just like the cool kids, it sits in the Transition metals group. To the best of my understanding, no one person can be credited with Mercury’s discovery, as it was in use since antiquity, which has included several ancient civilisations like the Egyptians, Qin dynasty, Mayas, and Sumerians, to name but a few.

As you can imagine, Mercury is not named after Freddie Mercury, but rather the planet, Mercury, the first planet from the Sun. The element was once known as quicksilver because it is a metal that remains liquid at room temperature. This property connects it to the planet Mercury, named after the messenger of the Roman gods, who was said to speed across the night sky, just like the planet.

A colourful view of Mercury produced using images from the color base map imaging campaign during MESSENGER’s primary mission. (Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington)

Uranium (U): Uranus

Located in the Actinoids group, Uranium is the 92nd element on the Periodic Table. Just like the beautiful nightmare of your ex-partner, this element is radioactive and dangerous. Uranium was discovered in 1789 by the German chemist, Martin Heinrich Klaproth, whom we have met before.

It won’t take you 20 questions to figure this one out, but Klaproth named his newly discovered element after the 1781 discovery of the seventh planet from the Sun, Uranus, by the German astronomer, William Herschel.

Please remember that the pronunciation of Uranus’ name is not Yuor-ray-nuhs or U-ran-us, as you would think. It’s actually pronounced Yoor-e-nes or Ur-an-us. Facts matter, boys and girls, facts matter.

This composite image features the ringed planet Uranus set against the blackness of space. Credit: NASA’s Chandra X-ray Observatory.

Neptunium (Np): Neptune

Sitting right next to Uranium in the Actinoids is Neptunium, the 93rd element on the Periodic Table. It was first synthesised in 1940 by Philip H. Abelson and Edwin McMillan at the Berkeley Radiation Laboratory, California, United States.

Neptunium was named after the eighth planet, Neptune, which was discovered in 1846 by Johann Galle, Urbain Le Verrier, and John Couch Adams. The element was named after the planet, because it was going to follow the pattern set down with Uranium and Uranus.

This composite image provided by NASA on Sept. 21, 2022, shows three side-by-side images of Neptune. From left, a photo of Neptune taken by Voyager 2 in 1989, Hubble in 2021, and the James Webb telescope in 2022. Credit: NASA via AP.

Plutonium (Pu): Pluto

Chilling next to Neptunium in the Actinoids group, we have the 94th element on the Periodic Table: Plutonium. For its discovery, we need to go back to between December 1940 and February 1941, when Glenn T. Seaborg, Edwin McMillan, Emilio Segrè, Joseph W. Kennedy, and Arthur Wahl first produced, isolated, and identified plutonium.

By now, you would have noticed a small pattern with the naming of the last two elements. You don’t have to be a qualified nuclear safety inspector like Homer Simpson to realise that plutonium was named after the planet, now dwarf planet, Pluto, which was discovered in 1930.

Enhanced color view of Pluto using images from New Horizons Long Range Reconnaissance Imager (LORRI) and color data from the spacecraft’s Ralph Instrument. (Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)

That’s another nine elements down, with only 96 to go. I’ll keep chipping away at it here, on New Zealand’s 5th least favourite website. Did I miss any elements? As always, please let me know.

That’s it for another week. Thanks again for reading, following, and subscribing to Some Geek Told Me. Please remember to walk your dog, read a banned book, and never give Chuck Norris a blunt instrument, because someone will regret it. I’ll see you next week for some more amateur writing by yours truly.