None of the alpha particles fired at the foil are being repelled back, like they were in the Rutherford atom simulation.I hope this correct.
Covalent example ch4 where carbon is covalently bonded with all 4 hydrogens
It is on a plate boundary so there are a lot of volcanoes in that area. All the volcanoes form a "ring" around the plate boundary.
Francium has the largest atomic radius.