Prepare the biographical notes of scientists related to the classification of elements.

i. Antoine Lavoiser

He was born in 19^th of August, 1830 in Germany. He was an German chemist. He was one of them who made periodic table successful.

ii. John Dalton

He was born in 6^th of September, 1766 in England. He was an English chemist, physicist, meteorologist. He discovered atomic theory. He discovered gas laws too.

iii. ChanCourtois

He was born in 20^th January 1820. He was French geologist and mineralogist. He died in 1886 in Paris. He was also one of them who made periodic table successful.

iv. John Alexander Newlands:

He was born in 26^th of November, 1837 in London. He was an English chemist who discovered the “law of octaves”. It was a significant attempt to classify the elements.

v. Julius Lothar Meyer

He was born in 13^th of December, 1780 in London. He was an English chemist who discovered the “law of octaves”. It was a significant attempt to classify the elements.