During any physical or chemical change takes place, the total mass of the matter remains:
Different
Zero
Same
None of these
________ proposed that atom consists of a positively charged sphere where electrons are embedded in that sphere
Thomson
Dalton
Bohr
Rutherford
The scientist who discovered portons
Goldstein
Bohar
None of them
Barium chloride reacts with sodium sulphate solution to form :
Sodium thiosulphate
Barium sulphate
Sulphur dioxide
Hydrogen sulphide
Anode rays are found to be a stream of :
Protons
Electrons
Neutrons
Neutrinos
Who proposed first the word 'electron' for atom of electricity ?
J.J. Thomson
William Crooke
Proust
Stoney
Cathode rays are :
Positrons
Negatively charged particles are:
Identify the wrong statement regarding the properties of cathode rays ?
Cathode rays are deflected towards the negatively charged plate.
Cathode rays are deflected perpendicular to the applied magnetic field when it passed through a magnetic field.
Cathode rays are made up of small particles.
Cathode rays travel in straight line.
The properties of ____________ rays depends upon the nature of the gas taken in the discharge tube.
Cathode
Anode
Cosmic rays
U.V.
