Oganesson

Imagine a super-duper heavy element that scientists had to build themselves! That's Oganesson. It has the biggest number of protons in its center, making it the heaviest element known.

It's so new that scientists only made it in 2002! It's like a brand new toy that nobody has played with much yet. It has a special symbol, Og, and a super high atomic number, 118.

It's the last element in its row on the periodic table, like the final boss in a video game!

Oganesson wasn't found in a mine or a cave. Scientists in Russia and America worked together in a special lab to create it. They smashed tiny bits of other elements together really, really hard.

It took a lot of science and patience to make even one tiny atom of Oganesson. It's like trying to build a giant LEGO castle with only a few bricks, and you have to make the bricks yourself first! Only five atoms have ever been made.

Oganesson is super radioactive, which means it falls apart very quickly. Its half-life is less than a blink of an eye, about 0.7 milliseconds! That's faster than you can say 'Oganesson'!

Because it disappears so fast, scientists can't really study what it's like. They think it might be a solid, which is different from other gases in its group. It's like a ghost element, here for a second and then gone!

Even though we can't touch or see much of Oganesson, it's super important for scientists. It helps them understand how the biggest and heaviest elements are made. It's named after a brilliant scientist, Yuri Oganessian, who helped discover many heavy elements. Learning about Oganesson is like learning about the farthest stars in the universe – it pushes the boundaries of what we know!