Chemists and their contribution to science
                     CHEMISTS AND THEIR 
CONTRIBUTION TO SCIENCE
Antoine Lavoisier 
(Antoine- Laurent 
de Lavoisier)
A French chemist, he is known as the father of modern chemistry. His 
contribution is remembered for both chemistry and biology. Some of his 
popular works include-
• Oxygen theory
• Nomenclature of chemicals
• Providing the concepts of stoichiometry
• The chemical revolution
Source: www.superprof.co.in
Dmitri Mendeleev
Many researchers have tried to present the elements and define their 
periodicity, including John Newlands, and Lothar Meyer. Until 1867, when 
Mendeleev was preparing a textbook on chemistry, he made periodic 
tables his most valuable discoveries.
Source: www.superprof.co.in
Linus Carl Pauling
He is an American-based chemist, chemist engineer, and biochemist. He 
won Nobel prizes for his chemistry work. Some of his contributions in the 
field include-
• Chemical bond and its nature
• Ionic crystals structures
• Work on biological molecules
• Worked for molecular genetics
Source: www.superprof.co.in
John Dalton
Besides being a renowned chemist, he was also a popular microbiologist 
and meteorologist. He identified colour blindness. His works include-
• Dalton’s Atomic Theory
• Dalton’s Atomic Weights
• Gas Laws
Source: www.superprof.co.in
Marie Curie
She was the first lady who won Nobel prizes for physics and then 
chemistry. She is known for her discoveries of radioactivity. There is a lot 
to learn in chemistry, which makes the subject a versatile phenomenon. 
Source: www.superprof.co.in
Amedeo Avogadro
The first scientist to realize that elements could exist in the form of 
molecules rather than as individual atoms; originator of Avogadro’s law.
Source: www.famousscientists.org
Jacob Berzelius 
A founder of modern chemistry: the first person to measure accurate 
atomic weights for the chemical elements; discovered three elements: 
cerium, thorium, and selenium; devised the modern symbols for 
elements; described how chemical bonds form by electrostatic attraction.
Source: www.famousscientists.org
Niels Bohr
Founded quantum mechanics when he remodeled the atom so electrons 
occupied ‘allowed’ orbits around the nucleus while all other orbits were 
forbidden; architect of the Copenhagen interpretation of quantum 
mechanics.
Source: www.famousscientists.org
Robert Boyle 
Transformed chemistry from a field bogged down in alchemy and 
mysticism into one based on measurement. He defined elements, 
compounds, and mixtures; and he discovered the first gas law – Boyle’s 
Law.
Source: www.famousscientists.org
THANK YOU