The scientist who named cathode ray particle as electron :
J.J.Thomson
G.J..Stoney
Rutherford
Dalton
Which is not true in the case of anode rays ?
Anode rays travel in straight lines
Anode rays travel in the opposite direction of cathode rays .
Anode rays are negatively charged particles .
Anode rays deviated their path towards a negatively charged electrode when an electric field was applied .
Which of the following fundamental particles is not deflected by a magnetic field?
Proton
Neutron
Electron
Positron
Magnitude of the proton in an atom is equal to that of _________ .
electron
neutron
neutrino
antineutrino
Which of the following are true for an element?
(i) Atomic number = Number of protons+ Number of electrons
(ii) Mass number= Number of protons+ Number of neutrons
(iii) Atomic mass= Number of protons= Number of neutrons
(iv) Atomic number= Number of protons= Number of electrons
(i) and (ii)
(i) and (iii)
(ii) and (iii)
(ii) and (iv)
Which is not related to cathode ray ?
These rays originate from cathode .
They travel in straight line .
These rays produce shadow of objects placed in their path .
These rays carry a positive charge .
Nuclear model of the atom was proposed by:
Thomson
Neils Bohr
Moseley
____________ are called canal rays .
Neutrons
Protons
Cathode rays
none of these
The number of electrons in an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of the element?
Neutrons possess ___________ charge .
neutral
positive
negative