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प्रश्न
Explain the observation, at the end of each period, there is a slight increase in the atomic radius of d-block elements.
उत्तर
The d-orbital is full with ten electrons and shields the electrons present in the higher s-orbital to a greater extent resulting in an increase in size.
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संबंधित प्रश्न
Write down the electronic configuration of Co2+.
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 transition metal of 3d series has positive E° (M2+/M) value and why?
Which among the following is not considered as a part of transition elements?
Zn2+ ion is iso – electronic with
Name the element of 3d series which exhibits the largest number of oxidation states. Give reason.
Give reason for the following statements:
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.