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प्रश्न
Electronic configuration of species M2+ is 1s2 2s2 2p6 3s2 3p6 3d6 and its atomic weight is 56. The number of neutrons in the nucleus of species M is
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30
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उत्तर
30
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संबंधित प्रश्न
Assertion: The spectrum of He+ is expected to be similar to that of hydrogen.
Reason: He+ is also one electron system.
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If n = 6, the correct sequence for filling of electrons will be,
How many electrons in an atom with atomic number 105 can have (n + 1) = 8?
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\[\ce{He^+_{(g)} -> He^2+_{(g)} + e^-}\]
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Identify the missing quantum numbers and the sub energy level
| n | l | m | Sub energy level |
| ? | ? | 0 | 4d |
| 3 | 1 | 0 | ? |
| ? | ? | ? | 5p |
| ? | ? | −2 | 3d |
