Atomic Theory..⚛️

Front

Who proposed the plum pudding model?

Back

JJ Thomson

Front

Out of the 3 models, whose model was most flawless? Options: Dalton's, Rutherford's, Bohr's, Thomson's

Back

Bohr's

Front

Who conducted the alpha-particle scattering experiment?

Back

Ernest Rutherford

Front

The orbits or shells are called ...........?

Back

Energy levels

Front

Who was the first person to propose a model for the structure of atom? Options: Neils Bohr, Ernest Rutherford, Dalton, JJ Thomson

Back

JJ Thomson

Front

Thomson proposed that an atom consists of a negatively charged sphere and the electrons are embedded in it. True or False?

Back

False

Answer explanation

Thomson proposed that - An atom consists of a positively charged sphere and the electrons are embedded in it.

Front

Assertion Reason - based Question: A : Rutherford selected gold foil for his experiment. R : He wanted as thin a layer as possible.

Back

Both A and R are true and R is the correct explanation of A

Front

Identify the person in the picture: Robert Milliken, Neils Bohr, Ernest Rutherford, Can't be determined.

Back

Neils Bohr

Front

Is the size of the nucleus very small compared to the size of the atom?

Back

True

Front

According to Rutherford's experiment, one out of every ______ particles appeared to rebound.

Back

12000