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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
Fill in the blank
The ..........................of an atom is very hard and dense.
Give the following a suitable word/phrase.
The number of protons present in the nucleus of an atom.
How does the existence of isotopes contradict Dalton’s atomic theory?
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?
ANSWER IN DETAIL
What are the various components of a nuclear power plant?
Which part of atom was discovered by Rutherford?
‘Electrons revolve around the nucleus in fixed orbits or shells called energy levels’. State how these energy levels are represented.
Explain in brief the experimental proof which led to the discovery of –
Atomic nucleus
What is meant by the term nucleus
