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प्रश्न
Write down the electronic configuration of Co2+.
उत्तर
Co2+ (27): 1s2 2s2 2p6 3s2 3p6 3d7
Or, [Ar]18 3d7
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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 reason:
Transition metals and many of their compounds show paramagnetic behaviour.
Write down the electronic configuration of Cr3+.
Write down the electronic configuration of Pm3+.
Write down the electronic configuration of Cu+.
Write down the electronic configuration of Ce4+.
Write down the electronic configuration of Th4+.
Account for the following:
Mn2+ is more stable than Fe2+ towards oxidation to +3 state.
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 ____________.
Which of the following compounds is expected to be colored?
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.
Assertion (A) : Copper is a non-transition element.
Reason (R) : Copper has completely filled d-orbitals in its ground state.
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 |
