First Name
1. Anderson
Carl
He discovered the positron.
2. Avogadro
Amadeo
He calculated the number of atoms in a mole.
3. Bohr
Niels
He suggested that electrons orbited the nucleus in fixed energy levels.
4. Boyle
Robert
He developed one of the gas laws.
5. Cavendish
Henry
In 1760 he studied the "inflammable air', now known as hydrogen gas, and later ascertained that water resulted from the union of two gases.
6. Celsius
Anders
He devised the centigrade scale (Celsius scale) of temperature in 1742.
7. Chadwick
James
He discovered the neutron.
8. Charles
Jacques
He was the first person to fly in a hot air balloon.
9. Curie
Marie
She discovered radium and polonium.
10. Curie
Pierre
He helped his wife Marie and worked with radiation.
11. Dalton
John
He proved that matter is made of small particles he called atoms.
12. De Borglie
Louis
He discovered the wave nature of electrons.
13. Faraday
Michael
He reported a wide range of discoveries about the nature of electricity, notably electrolysis, and the relationship between electricity and magnetism.
14. Fermi
Enrico
He investigated the fission of uranium.
15. Gay-Lussac
Joseph
He developed one of the gas laws.
16. Gell-Mann
Murray
In 1960 he proposed a method for classifying all the particles then known. (Quarks)
17. Graham
Thomas
He formulated the law that the diffusion rate of gases is inversely proportional to the square root of their density
19. Lavoisier
Antoine Laurent
In 1788 he showed that air is a mixture of gases which he called oxygen and nitrogen.
20. Lawrence
John H.
He was the first person to use X-rays as a type of medical therapy.
21. Libby
William F.
He established radioactive carbon-14 dating.
22. Mendeleyev
Dmitri Ivanovich
He devised the periodic classification (or table) of chemical elements.
23. Milikan
Robert A.
He discovered radiation coming from outer space and called it cosmic rays.
24. Moseley
Henry
He determined the atomic numbers of many elements.
25. Pauling
Linus
His early research used X-ray crystallography to study the nature of chemical bonding.
26. Planck
Max
He introduced the quantum theory for the structure of an atom.
27. Priestly
Joseph
A pioneer in the physics of electricity and the chemistry of gasses.
28. Roentgen
Wilhelm
He discovered X-rays.
29. Rutherford
Ernest
He discovered the nucleus of an atom.
30. Serge
Emilio
He suggested the existence of the antiproton.
31. Thomson
J. J.
He discovered the electron.
32. Thomson
William
(Lord Kelvin) He developed the Kelvin temperature scale.
33. Urey
Harold
He made heavy hydrogen.
34. Yakawa
Hideki
He predicted the existence of the meson, a particle hundreds of times heavier than the electron.
