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प्रश्न
Explain the Mass number with example.
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उत्तर
The mass number of an element is equal to the sum of the number of protons and the number of neutrons present in it.
Example: Number of protons in carbon = 6
Number of neutrons = 6
Hence mass number = Number of protons + Number of neutrons
= 6 + 6
= 12
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संबंधित प्रश्न
Which of the following are isoelectronic species i.e., those having the same number of electrons?
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FILL IN THE BLANK
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Fill in the following blanks :
| Atomic Number | Mass Number | Protons | Neutrons | Electrons | Symbol |
| 10 | 22 | _________ | _________ | _________ | _________ |
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Atomic no. = 1
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An element ‘A’ has mass number 23 and atomic number 11. State the –
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