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प्रश्न
Compare a proton and a neutron in respect of mass and charge.
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उत्तर
Proton: The relative mass of a proton is 1u and its absolute mass is approximately 1.602 × 10–24g. Charge on a proton is +1.
Neutron: Relative mass of a neutron is 1u and its absolute mass is approximately 1.602 × 10–24g . Charge on a neutron is zero.
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
Multiple Choice Questions
The outermost shell of an atom is known as
Multiple Choice Questions
number of valence electrons present in magnesium is
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
Explain the rule with example according to which electrons are filled in various energy levels
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
WRITE SHORT ANSWER
What do you mean by electron transition?
State its one drawback of Rutherford’s atomic model.
Define the term Valence shell.
Draw a neat labelled diagram representing an atom. Name the three sub-atomic particles in the atom and represent them symbolically showing the mass and charge of each. State where the sub-atomic particles are present in the atom.
