Class 11ChemistryStructure of AtomDiscovery and Properties of anode, cathode rays neutron and Nuclear structure
EasyFill in the blanks:
$(i)$ $R. A. Millikan$ developed the ......... method to determine the charge of an electron.
$(ii)$ The positively charged particles in a modified cathode ray tube are called ............ .
$(iii)$ The smallest and lightest positive ion obtained from hydrogen is ........... .
$(iv)$ In the year $1932$,$Chadwick$ discovered ........... .
$(i)$ $R. A. Millikan$ developed the ......... method to determine the charge of an electron.
$(ii)$ The positively charged particles in a modified cathode ray tube are called ............ .
$(iii)$ The smallest and lightest positive ion obtained from hydrogen is ........... .
$(iv)$ In the year $1932$,$Chadwick$ discovered ........... .
(N/A) $(i)$ Oil-drop method
$(ii)$ Canal rays (or Anode rays)
$(iii)$ Proton
$(iv)$ Neutron
$(ii)$ Canal rays (or Anode rays)
$(iii)$ Proton
$(iv)$ Neutron
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