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प्रश्न
Give the following a suitable word/phrase.
The number of protons present in the nucleus of an atom.
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उत्तर
Atomic number
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संबंधित प्रश्न
Fill in the blank
The ..........................of an atom is very hard and dense.
Complete the table below by identifying A, B, C, D, E and F.
FILL IN THE BLANK
Nuclear energy can be used to make ..........................
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
TRUE \ FALSE
Uranium-235 and uranium-238 both undergo nuclear fission.
ANSWER IN DETAIL
How are radioactive radiations useful in medicines ?
On the basis of Rutherford's model of an atom, which subatomic particle is present in the nucleus of an atom?
How was it shown that atom has empty space?
What are nucleons? How many nucleons are present in phosphorus? Draw its structure.
‘Electrons revolve around the nucleus in fixed orbits or shells called energy levels’. State how these energy levels are represented.
