The mole from chemistry that is.
A mole (or mol) is a standard, scientific unit for measuring large quantities of very small entities, such as atoms. Avogadro’s number refers to the number of units in one mole of any substance.
It’s time to celebrate Avogadro’s Number and the periodic table of elements! Why October 23rd? It’s from Avogadro’s number.
Avogadro’s Number = 6.022 x 1023
You can learn more about Mole day on the American Chemical Society’s site. We’re also right in the middle of National Chemistry week! The theme for National Chemistry week is “Marvelous Metals.” I can think of a couple: silver and gold anyone?
And guess what? 2019 is the International Year of the Periodic Table. We’re at the 150th anniversary since the publication in 1869 of the Periodic Table of Chemical Elements by Mendeleev.