Lithium, whose silvery-white colour tarnishes on oxidation when exposed to air, is the most electropositive metal (−3.04 V versus a standard hydrogen electode), the lightest (M = 6.94 g mol −1 ...

For the first time, scientists have successfully fabricated gold sheets that measure only one atom in thickness. Named ‘goldene’, it has given gold new qualities that make it appropriate for ...

Everyone at that time imagined the atom as a "plum pudding ... emitted by the radioactive element radium) at a sheet of gold foil only 1/3000 of an inch thick, and tracing the particles' paths.