Who discovered Isotopes?

Isotopes are alternatives of atoms of a specific chemical element which have distinct numbers of neutrons. They were discovered in 1913 by British physicist, Sir Joseph John “J. J.” Thomson… Read more »

Who discovered Amazon River?

Amazon River is the world’s second longest river located in South America. It flows within the Brazil, Colombia and Peru. Its upper part lies in the Andes Mountains (Maranon River)…. Read more »

Who discovered Sodium?

Sodium is a silvery-white, highly reactive and soft metal. It is a metallic element. Its chemical symbol is Na and its atomic number is 11. It was abstracted in 1807… Read more »