A person may not be good at one side/sector. But, may be a superb on another side/sector. Mendeleev again proved that.
FYI, I memorized all the elements name serially while i was in school :) It was 109 I think that time. Now how many of them?
A person may not be good at one side/sector. But, may be a superb on another side/sector. Mendeleev again proved that.
FYI, I memorized all the elements name serially while i was in school :) It was 109 I think that time. Now how many of them?
RE: Periodic Table Day + Día de la Tabla Periódica [Eng+Spa]