Atomic Structure

Question 0

Electric charge established by

Answer 0

J. Thomson 1897

Question 1

Polarity of cathode rats determined by

Answer 1

J. Perrin 1895

Question 2

Proton discovered by

Answer 2

German physicist E. Goldstein 1886

Question 3

Neutron predicted by

Answer 3

Rutherford 1920

Question 4

Neutron discovered by

Answer 4

Chadwick 1932

Question 5

Instrument to measure e/m value devised by

Answer 5

J. J Thomson

Question 6

Charge on electron determined by

Answer 6

Millikan 1909

Question 7

Gold foul experiment done by

Answer 7

Lord Rutherford 1911

Question 8

Quantum theory proposed by

Answer 8

Max Planck 1900

Question 9

Circular orbits of electron theorized by

Answer 9

Sommerfield, 1915

Question 10

Study of x rays done by

Relationship between frequency of x rays and atomic number

Answer 10

Moseley 1913-1914

Question 11

Experiment to verify wave nature of electron done by

Answer 11

Davisson and Germer 1927

Question 12

Spin of electron suggested by

Answer 12

Goudamith and Uhlenbech 1925

Question 13

Hydrogen atom studied by

Radius and energy of electron given by

Answer 13

Neil Bohr

Question 14

Wave mechanical model of hydrogen atom given by

Answer 14

Schrodinger

Question 15

Process of synthesis of ammonia developed by

Answer 15

German chemist F. Haber 1933