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प्रश्न
In what way is the electronic configuration of the transition elements different from that of the non-transition elements?
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उत्तर
The electronic configuration of transition elements is of the type (n – 1)d1–10 ns1–2, and thus they have an incomplete d-orbital, whereas the d-orbital is not found in non-transition elements. Their electronic configuration is of the type ns1–2 or ns2 np1–6.
संबंधित प्रश्न
ln which pair highest oxidation states of transition metals are found:
Account for the following:
Cu+2 salts are coloured, while Zn2+ salts are white.
Calculate the ‘spin only’ magnetic moment of \[\ce{M^{2+}_{( aq)}}\] ion (Z = 27).
Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following point:
Electronic configurations
Following are the transition metal ions of 3d series:
Ti4+, V2+, Mn3+, Cr3+
(Atomic numbers: Ti = 22, V = 23, Mn = 25, Cr = 24)
Answer the following:
1) Which ion is most stable in an aqueous solution and why?
2) Which ion is a strong oxidising agent and why?
3) Which ion is colourless and why?
Transition metals with highest melting point is ____________.
Transition elements show magnetic moment due to spin and orbital motion of electrons. Which of the following metallic ions have almost same spin only magnetic moment?
(i) \[\ce{Co^{2+}}\]
(ii) \[\ce{Cr^{2+}}\]
(iii) \[\ce{Mn^{2+}}\]
(iv) \[\ce{Cr^{3+}}\]
Explain why does colour of KMnO4 disappear when oxalic acid is added to its solution in acidic medium.
Answer the following question:
Which element of the first transition series has lowest enthalpy of atomisation?
Mention any three processes where transition metals act as catalysts.
The spin magnetic moment of cobalt in the compound Hg [Co(SCN)4] is:-
Which does not belong to first transition series?
Agcl is soluble in NH4OH. The solubility is due to the information of:-
Match List - I with List - II.
| List - I | List - II | ||
| (A) | [Fe(CN)6]3− | (i) | 5.92 BM |
| (B) | [Fe(H2O)6]3+ | (ii) | 0 BM |
| (C) | [Fe(CN)6]4− | (iii) | 4.90 BM |
| (D) | [Fe(H2O)6]2+ | (iv) | 1.73 BM |
Choose the correct answer from the options given below.
How is the variability in oxidation states of transition metals different from that of p-block elements?
In the ground state of atomic Fe (Z = 26), the spin-only magnetic moment is ______ × 10-1 BM.
(Round off to the nearest integer).
[Given: `sqrt3 = 1.73, sqrt2 = 1.41`]
A transition element X has an electronic configuration [Ar]4s23d3. Predict its likely oxidation states.
Explain the magnetic properties of d-block (or transition) elements.
