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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
पर्याय
26
22
30
24
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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.
How many electrons in an atom with atomic number 105 can have (n + 1) = 8?
Define orbital?
what are the n and l values for 3px and `"4d"_("x"^2 - "y"^2)` electron?
Determine the values of all the four quantum numbers of the 8th electron in the O-atom and 15th electron in Cl atom.
For each of the following, give the sub level designation, the allowable m values and the number of orbitals
- n = 4, l = 2
- n = 5, l = 3
- n = 7, l = 0
Describe the Aufbau principle.
Calculate the energy required for the process.
\[\ce{He^+_{(g)} -> He^2+_{(g)} + e^-}\]
The ionisation energy for the H atom in its ground state is −13.6 ev atom−1.
An ion with mass number 37 possesses unit negative charge. If the ion contains 11.1% more neutrons than electrons. Find the symbol of the ion.
Identify the missing quantum numbers and the sub energy level
| n | l | m | Sub energy level |
| ? | ? | 0 | 4d |
| 3 | 1 | 0 | ? |
| ? | ? | ? | 5p |
| ? | ? | −2 | 3d |
