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Physics

Ten Standard

Test your understanding of this lesson Natural radioactivity | Part-2:-

1)
The heavy element is
  • Sodium
  • Podium
  • Radium
  • Helium
2)
The ratio of proton and neutron in a heavy element is
  • 3:2
  • 2:1
  • 1:2
  • 2:3
3)
The radioactive element invented by Mother Curie is
  • uranium
  • thorium
  • polonium
  • plutonium
4)
\(\beta\) particles, analogous to electrons, are emitted from
  • nuclear part of the atom
  • extra nuclear orbit the atom
  • both nuclear & extra nuclear part of the atom
  • none of these
5)
Natural radioactivity is
  • an atomic phenomena
  • a nuclear phenomena
  • phenomena of extra nuclear part
  • all of these
Hand draw

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