Atomic StructureHard
Question
An ion Mna+ has the magnetic moment equal to 4.9 BM. The value of a is : (atomic no. of Mn = 25)
Options
A.3
B.4
C.2
D.5
Solution
= 4.9∴ No. of unpaired electrons, n = 4.
25Mn : [Ar]4s23d5
For having 4 unpaired electrons, a Mn atom should lose 3 electrons (2 from 4s and 1 from 3d).
∴ a = + 3.
Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
If uncertainty in position and momentum of a particle is numerically equal, then the minimum uncertainty in speed of the...Number of nodal surface in 5s orbital is...What is the wave number of the radiation of lowest frequency in the Lyman series of the spectrum of Li2+ ion?...For which orbit in He+ ion, the circumference is 26.5 Å?...Uncertainty in the position of an electron (mass = 9.1 × 10−31 kg) moving with a velocity 300 m/s accurate up to 0.001% ...