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प्रश्न
Write down the electronic configuration of Pm3+.
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उत्तर
Pm3+ (61): 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s0 5d0 4f4
Or,
[Xe] 4f4
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संबंधित प्रश्न
Silver atom has completely filled d orbitals (4d10) in its ground state. How can you say that it is a transition element?
Explain giving reasons:
Transition metals and many of their compounds show paramagnetic behaviour.
Write down the electronic configuration of Cr3+.
Write down the electronic configuration of Ce4+.
Write down the electronic configuration of Co2+.
Write down the electronic configuration of Mn2+.
Write the different oxidation states of manganese.
Name the elements of 3d transition series that show maximum number of oxidation states. Why does this happen?
Out of Cr3+ and Mn3+, which is a stronger oxidising agent and why?
Which among the following elements does not belong to the first transition series?
Electronic configuration of Cu3+ is ____________.
Zn2+ ion is iso – electronic with
Electronic configuration of manganese (Z = 25) is ______
Explain the observation, at the end of each period, there is a slight increase in the atomic radius of d-block elements.
Give reason for the following statements:
Scandium (Z = 21) is a transition element but Zn (Z = 30) is not.
Match the properties with the elements of 3d series:
| (i) | lowest enthalpy of atomisation | (p) | Sc |
| (ii) | shows maximum number of oxidation states | (q) | Mn |
| (iii) | transition metal that does not form coloured compounds |
(r) | Zn |
| (s) | Ti |
