April 2020
Intermediate to advanced
296 pages
5h 20m
English

“Note well that gap ’neath manganese!” Dimitri oft did say,
When Berkeley “bombed,” the gap was filled by Carlo and Segrè.
’Tis man-made now in tons on Earth . . .
GROUP 7 RADIOACTIVE TRANSITION METAL
[’neath: preposition — underneath]
The Russian chemist Dimitri Mendeleev (1834–1907) drafted his first periodic table of the then-known elements in 1869. He populated the elements in order of increasing atomic weight and also on his observation of ...