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प्रश्न
Write down the electronic configuration of Co2+.
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उत्तर
Co2+ (27): 1s2 2s2 2p6 3s2 3p6 3d7
Or,
[Ar]18 3d7
Or,
[Ar] 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 reasons:
Transition metals and many of their compounds show paramagnetic behaviour.
Write down the electronic configuration of Cr3+.
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Write down the electronic configuration of Mn2+.
Write the different oxidation states of manganese.
Account for the following:
Mn2+ is more stable than Fe2+ towards oxidation to +3 state.
Name the elements of 3d transition series that show maximum number of oxidation states. Why does this happen?
Which among the following elements does not belong to the first transition series?
Electronic configuration of Cu3+ is ____________.
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Zn2+ ion is iso – electronic with
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Scandium (Z = 21) is a transition element but Zn (Z = 30) is not.
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 |
Write down the electronic configuration of:
\[\ce{CO^2+}\]
