Nature and its beauty

Archive for August, 2019

Atomic Structure College Chemistry Notes

These are notes by Chemistry Notes Info website on atomic structure for college chemistry students.

Atom:

          In Greek Atom means not divided. In 1803 john Dalton made a famous theory atomic theory according to this theory “matter is made up of tiny particles called atoms.” But in 1897 Sir J.J. Thomson proved experimentally that atoms are made of charged particles called electrons. And in the beginning of 20th century many scientists like Lord Rutherford, E. Goldstein proved that atom is not a smallest particle but is made up of electron, protons and neutrons.

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