And this, in 1869, is how Dmitri Mendeleev completed the first periodic table ...
Brilliant!
@Natasha_Jay but then we lost like four rows of elements and he had to start all over again
@Natasha_Jay Every chemistry student should have this.
@Natasha_Jay @aprilfollies “Quick! Turn that one halfway, Dmitri! No, not one-quarter, halfway!”
“Oops”
For many years, the mystery element one space to the right of iron remained undiscovered. It remained undiscovered until the nuclear chemists at Lawrence Berkeley National Laboratory got lucky in the 1940s, when their cyclotron spat out a four-in-a-row they could slot into the gap.
@Natasha_Jay the first version of tetris