Advertisements
Advertisements
Question
Write down the electronic configuration of Mn2+.
Advertisements
Solution
Mn2+ (25): 1s2 2s2 2p6 3s2 3p6 3d5
Or,
[Ar]18 3d5
Or,
[Ar] 3d5
APPEARS IN
RELATED QUESTIONS
Silver atom has completely filled d orbitals (4d10) in its ground state. How can you say that it is a transition element?
Write down the electronic configuration of Cr3+.
Write down the electronic configuration of Pm3+.
Write down the electronic configuration of Lu2+.
What is effective atomic number of Fe (z = 26) in [Fe(CN)6]4-?
(a) 12
(b) 30
(c) 26
(d) 36
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?
Out of Cr3+ and Mn3+, which is a stronger oxidising agent and why?
Which among the following elements does not belong to the first transition series?
The electronic configuration of \[\ce{Cu(II)}\] is 3d9 whereas that of \[\ce{Cu(I)}\] is 3d10. Which of the following is correct?
Which of the following compounds is expected to be colored?
Electronic configuration of manganese (Z = 25) is ______
Explain the observation, at the end of each period, there is a slight increase in the atomic radius of d-block elements.
Name the element of 3d series which exhibits the largest number of oxidation states. Give reason.
Define transition metals.
Assertion (A) : Copper is a non-transition element.
Reason (R) : Copper has completely filled d-orbitals in its ground state.
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 |
