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प्रश्न
Define the term Mass number.
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उत्तर
Mass number refers to the sum of the number of protons and neutrons present in the nucleus of an atom and denoted by A Mass number = Number of protons + Number of neutrons.
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संबंधित प्रश्न
Give the following a suitable word/phrase
Arrangement of electrons in the shells of an atom.
Define the term Atomic number.
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ANSWER IN DETAIL
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