Desitdown Kids (Periodic Table) #desitdown #kids

The answer to the previous post is D. Atomic Numbers

What is the Periodic Table?

The ordered arrangement of all chemical elements in order of increasing
atomic number—that is, the total number of protons in the atomic nucleus—
is known as the periodic table or the full periodic table of the elements.

8 Fun fact about the periodic table
• Hydrogen (H) is the first element and oganesson (O) is the last element
(Og).
• The first Periodic Table was produced by Russian chemist Dmitri
Mendeleev. The contemporary Periodic Table groups elements with
increasing atomic numbers as opposed to Mendeleev's table, which
arranges elements according to their rising atomic weight.
• The Periodic Table is controlled by the International Union of Pure
Applied Chemistry IUPAC.
• The element that is most prevalent in the universe is hydrogen (H). It
accounts for roughly 75% of the entire observable cosmos.
• The second most prevalent element in the universe is helium. Over 99%
of the observable universe is made up of hydrogen and helium.
• The first element to be created artificially was technetium (Tc). In 1937,
it was first synthesised.
• All the periodic table element symbols are missing one letter: J.
• The most recent names of the four elements are 113, 115, 117, and 118.
Nihonium (Nh), Moscovium (Mc), Tennessine (Ts), and Oganesson were
authorised as the names and symbols for these elements by the
International Union of Pure and Applied Chemistry on November 28,
2016. (Og).

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