Who manages the periodic table and what are its newest elements?
Today, the periodic table is managed by
the International Union of Pure and Applied Chemistry, or
IUPAC (eye-you-pack), responsible for deciding what needs to be changed based on specially created critera.
The last four elements to be discovered were officially recognized by the IUPAC in January, 2016: they are
nihonium (Nh),
moscovium (Mc),
tennessine (Ts), and
oganesson (Og), with atomic numbers 113, 115, 117, and 118, respectively.
Looking back in history, it’s worthy to note that ancient people knew about 10 elements: carbon, copper, gold, iron, lead, mercury, silver, sulfur, tin, and zinc.
Arsenic, antimony, and bismuth were discovered prior to 1500 AD, while phosphorus, cobalt, and platinum were discovered by 1750.
Most natural elements were found by 1900.
Technetium became the first synthetic element in 1937.
The first transuranium element to be discovered (neptunium) was found in 1940.
Subscribe- t.me/askmenow
