Advertisements
Advertisements
Question
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 |
Options
(i) (r), (ii) (q), (iii) (p)
(i) (r), (ii) (s), (iii) (p)
(i) (p), (ii) (q), (iii) (r)
(i) (s), (ii) (r), (iii) (p)
Advertisements
Solution
(i) (r), (ii) (q), (iii) (p)
Explanation:
Zinc has no unpaired electrons in 3d or 4s orbitals, so enthalpy of atomization is low.
Mn = 3d54s2 shows +2, +3, +4, +5, +6 and +7 oxidation states, maximum number in 3d series.
APPEARS IN
RELATED QUESTIONS
Explain giving reasons:
Transition metals and many of their compounds show paramagnetic behaviour.
Write down the electronic configuration of Ce4+.
Write down the electronic configuration of Co2+.
Write down the electronic configuration of Mn2+.
Name the elements of 3d transition series that show maximum number of oxidation states. Why does this happen?
Electronic configuration of Cu3+ is ____________.
The element with electronic configuration [xe]544f145d16S2 belongs to
Explain the observation, at the end of each period, there is a slight increase in the atomic radius of d-block elements.
Give reason for the following statements:
Scandium (Z = 21) is a transition element but Zn (Z = 30) is not.
Define transition metals.
