Author Archives: raman

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 »

Who discovered Francium?

Francium is a heavy chemical element. Its atomic number is 87 and its chemical symbol is Fr. It is highly radioactive alkali metal. It was discovered in 1939 in France… Read more »

Who discovered Caesium?

Caesium or cesium is a chemical element. Its chemical symbol is Cs and its atomic number is 55. It is silvery-gold soft alkali metal. It was discovered in 1860 by… Read more »