Advertisements
Advertisements
Question
Name the elements of 3d transition series that show maximum number of oxidation states. Why does this happen?
Solution
In 3d-series of transition metals, manganese has an atomic number of 25 that gives the electronic configuration as [Ar] 3d54s2 ,where we see that the maximum number of unpaired electrons is found in manganese atom; so, it can show a maximum oxidation state upto +7.
APPEARS IN
RELATED QUESTIONS
Explain giving reason:
Transition metals and many of their compounds show paramagnetic behaviour.
Write down the electronic configuration of Mn2+.
Write down the electronic configuration of Th4+.
Account for the following:
Mn2+ is more stable than Fe2+ towards oxidation to +3 state.
Which transition metal of 3d series has positive E° (M2+/M) value and why?
Which among the following elements does not belong to the first transition series?
Electronic configuration of Cu3+ is ____________.
Explain the observation, at the end of each period, there is a slight increase in the atomic radius of d-block elements.
Define transition metals.
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 |
