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प्रश्न
What are nucleons? How many nucleons are present in phosphorus? Draw its structure.
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उत्तर
Nucleons: Particles which constitute the nucleus are called nucleons.
Protons and neutrons are the nucleons.
Atomic mass of phosphorus = 31
Atomic number = 15
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The number of protons present in the nucleus of an atom.
Multiple Choice Questions
The number of electrons in an atom is equal to number of
How does the existence of isotopes contradict Dalton’s atomic theory?
FILL IN THE BLANK
Amount of energy stored inside the ..................... is known as nuclear energy.
Tick the most appropriate answer.
Which of the following is used as a coolant in nuclear reactor?
- liquid sodium
- liquid nitrogen
- cadmium steel rods
- plutonium
WRITE SHORT ANSWER
What is the central part of an atom known as?
On the basis of Rutherford's model of an atom, which subatomic particle is present in the nucleus of an atom?
Which part of atom was discovered by Rutherford?
Choose the correct option
Rutherford's alpha-particle scattering experiment discovered
Explain in brief the experimental proof which led to the discovery of –
Atomic nucleus
