https://www.economist.com/science-and-technology/2019/02/28/the-periodic-table-is-150-years-old-this-week a full history!
Archive for the '–' Category
The history of science – The periodic table is 150 years old this week | Science and technology | The Economist
November 17, 2019LongTable2000.png (2000×970)
November 17, 2019https://www.sciencegeek.net/tables/LongTable2000.png
No insert periodic table
Oganesson – Wikipedia
November 17, 2019https://en.wikipedia.org/wiki/Oganesson
noble gas – completes the bottom row
WMO Resolution 40
November 17, 2019https://www.weather.gov/tg/addata
open data !
