Advertisements
Advertisements
प्रश्न
The second ionization enthalpies of chromium and manganese are 1592 and 1509 kJ/mol respectively. Explain the lower value of Mn.
Advertisements
उत्तर
Mn+ has 3d54s1 configuration and configuration of Cr+ is 3d5, therefore, ionisation enthalpy of Mn+ is lower than Cr+.
APPEARS IN
संबंधित प्रश्न
Why is Sc3+ colourless while Ti3+ coloured? (Atomic number Sc = 21, Ti =22)
Account for the following:
Cr2+ is a strong reducing agent.
Which of the 3d series of the transition metals exhibits the largest number of oxidation states and why?
Complete and balance the following chemical equations
`Fe^(2+) + MnO_4^(-) + H^+ ->`
The paramagnetic character in the 3d-transition series elements increases up to Mn and then decreases.
Which among the following transition metal has the lowest melting point?
Transition elements show high melting points. Why?
Why are fluorides of transition metals more stable in their higher oxidation state as compared to the lower oxidation state?
It has been observed that first ionization energy of 5 d series of transition elements are higher than that of 3d and 4d series, explain why?
Why Zn, Cd and Hg are not called transition metals?
