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प्रश्न
Explain briefly how +2 states become more and more stable in the first half of the first-row transition elements with increasing atomic numbers.
उत्तर
In the elements of the first half of the first row, with the removal of valance 4s electrons (+2 oxidation state) the 3d orbital gets gradually occupied. Since the number of empty d orbital decreases, the stability of the cations (M2+) increases from Sc2+ to Mn2+.
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संबंधित प्रश्न
Which one of the following ions has the same number of unpaired electrons as present in V3+?
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The catalytic behaviour of transition metals and their compounds is ascribed mainly due to ____________.
The correct order of increasing oxidizing power in the series
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\[\ce{MnO^2-_4 + H^+ ->?}\]
Calculate the number of unpaired electrons in Ti3+, Mn2+ and calculate the spin only magnetic moment.
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Describe the variable oxidation state of 3d series elements.
Which metal in the 3d series exhibits +1 oxidation state most frequently and why?
Transition metals show high melting points why?
