WELCOME
Chemistry
The scientific study of matter, its properties, how it behaves, and the changes it undergoes
What is the Periodic tables of elements?
Oganesson ( Atomic Number 118 )
If u wonder what is oganesson is then read the paragraph below.
Oganesson(Og) is the heaviest element on the periodic table of elements, it's atomic number 118. It is a highly radioactive element. It's first research was begun in the 2000s by a team of Russian and American researchers, it was officially named in 2016 to honor nuclear physicist Yuri Oganessian. Unlike other noble gases in its group(noble gas), oganesson is might behave very differently, some said it might be even as a solid. Only a few atoms have ever been made, and they decay(Became other differnent kinds of elements) in milliseconds, so oganesson one of the most mysterious and least understood elements in the table.
The periodic table of elements is a table that have all known elements, based on THEIR ATOMIC NUMBER, the number of proton in it’s nucleus. The table were arranged in rows called periods and columns called groups, it helps students and teachers learn and understand an element’s behavior, like Is it reactive ? , whether it’s a metal or non‑metal, and how it forms compounds.
​
There are 118 known elements, starts with hydrogen (atomic number 1) and ends with oganesson (I have no idea it exist and wth even it is that). The periodic table is one of the most important thing in chemistry because it basically have all the stuff we need for chemistry.
Who invited it?
The periodic table of elements was invented by Dmitri Mendeleev(1834-1907) in 1869. He arranged the known elements in 1869 in order and noticed repeating patterns, which can organize them into a table. He even left empty spaces for elements that had not yet been discovered at the time his invited it and correctly predicted their properties too!
Dmitri Mendeleev(1834-1907)
The periodic table of elements in 1869.