Helium atom has an atomic mass of $4 \, u$ and two protons in its nucleus. How many neutrons does it have?
- A$1$
- B$2$
- C$3$
- D$4$
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View SolutionComplete the following table.
Atomic Number
Mass Number
Number of Neutrons
Number of Protons
Number of Electrons
Name of the Atomic Species
$9$
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$10$
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$16$
$32$
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sulphur
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$24$
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$2$
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$1$
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$1$
$0$
$1$
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| Atomic Number | Mass Number | Number of Neutrons | Number of Protons | Number of Electrons | Name of the Atomic Species |
| $9$ | - | $10$ | - | - | - |
| $16$ | $32$ | - | - | - | sulphur |
| - | $24$ | - | $12$ | - | - |
| - | $2$ | - | $1$ | - | - |
| - | $1$ | $0$ | $1$ | $0$ | - |
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