Write five scientist and their contribution in chemistry at list 50 words Please tell fastly
Answers 2
Amedeo Avogadro (1776 - 1856)-is best known for his hypothesis that equal volumes of different gases contain an equal number of molecules, provided they are at the same temperature and pressure.
Jons Jacob Berzelius (1779 - 1848)-is credited with discovering the chemical elements cerium and selenium and with being the first to isolate silicon and thorium. Berzelius discovered cerium in 1803 and selenium in 1817.
Robert Boyle (1627 - 1691)- He is best known for Boyle's law, which describes the inversely proportional relationship between the absolute pressure and volume of a gas, if the temperature is kept constant within a closed system. Among his works, The Sceptical Chymist is seen as a cornerstone book in the field of chemistry.
Marie Curie (1867-1934)- Marie Sklodowska Curie (1867–1934) was the first person ever to receive two Nobel Prizes: the first in 1903 in physics, shared with Pierre Curie (her husband) and Henri Becquerel for the discovery of the phenomenon of radioactivity
John Dalton (1766 - 1844)-
Dalton was a very important chemist that came up with a law about partial pressures. He developed a table of atomic weights for atoms and proposed his atomic theory. John Dalton's Atomic Theory stated that all matter composed of variety small particle atoms, which provides unique characteristics and weight.
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Answer:
Name of Scientists who contributed in chemistry: Dmitri Mendeleev, Marie curie, Robert Boyle, Prafulla Chandra Ray, Linus Pauling, Ernest Rutherford, etc.
Explanation:
1. Dmitri Mendeleev:- He was the Russian chemist.
- He is known for contributing in forming of periodic law and using in putting elements in periodic table.
- He put periodic table's elements in the groups based on their chemical and physical properties.
- Due to this, he could predict the elements and their properties which were yet to be discovered.
- He predicted three elements which were yet to discovered, i.e., Eka-Aluminum (discovered element-Gallium), Eka-boron (discovered element-Scandium) and Eka-silicon (discovered element-Germanium).
- Marie curie discovered metallic elements Radium and Polonium.
- She Isolated pure state of metallic Radium for the first time.
- She carried out the first research on cancer tumors with radiation therapy.
- She won Nobel prize for her contribution in chemistry as well as physics.
- She is the only person who won Nobel prize in both physics and chemistry.
- Boyle is known as a founder of Modern chemistry
- Robert Boyle Discovered the Boyle's law of gas which is as below:
"At constant temperature, the absolute pressure is inversely proportional to the volume of a fixed amount of gas."
- He also developed the methods to determine purity of compounds and chemicals.
- 'Antoine Lavoisier' is known as 'Father of Chemistry'.
- He discovered that mass is conserved in a chemical reaction.
- He proved the law of conversion of mass.
- He gave the oxygen theory of combustion.
- Prafulla Chandra Roy was Bengali-Indian chemist.
- He is known as Father of Chemistry of India.
- He discovered Mercurous nitrite chemical compound.
- He was the founder of India's first pharmaceutical company: 'Bengal Chemicals and Pharmaceuticals'.
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