Class 9 CBSE Science Quiz

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Questions and Answers

What is the charge on a proton?

  • Positive (correct)
  • Fractional
  • Neutral
  • Negative

What is the total number of electrons present in a carbon atom?

  • 8
  • 4
  • 12
  • 6 (correct)

Which scientist proposed the model of the atom in which electrons move around the nucleus in fixed paths or orbits?

  • Werner Heisenberg
  • Louis de Broglie
  • Erwin Schrödinger
  • Niels Bohr (correct)

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