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प्रश्न
What do you mean by Atomic number
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उत्तर
Atomic number is the number of protons present in the nucleus. As number of protons is equal to the number of electrons so atomic number also gives the number of electrons in an atom.
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संबंधित प्रश्न
Under which conditions does the nucleus of an atom tend to radioactive?
Why is a cathode ray tube evacuated to a low pressure?
Define the term radioactivity.
A nucleus of an element X which has the symbol `""_84^202` X emits an alpha particle and then a beta particle. The final nucleus is `""_"b"^"a"` Y Find a and b.
A certain nucleus A (mass number 238 and atomic number 92) is radioactive and becomes a nucleus B (mass number 234 and atomic number 90) by the loss of one particle.
What particle was emitted?
In beta decay, what particles can the nucleus emit?
Which decay process involves the emission of a particle with a comparatively large mass and a positive charge?
Which of the following correctly lists the three major types of radioactive decay found in nature?
