A transition metal ion exists in its highest oxidation state. It is expected to behave as :
a chelating agent
a central metal in a coordination compound
an oxidising agent
a reducing agent
The highest magneticmoment is shown by the transition metal ion with the configuration :
3d2
3d5
3d7
3d9
In the periodic table metals usually used as catalysts belong to
f-block
d-block
p-block
s-block
An element with atomic number 21 is a
halogen
representative element
transition element
alkali metal
Mercury is a liquid metal because
it has a completely filled s orbital
it has a small atomic size
it has a completely filled d orbital that prevents d-d overlapping of orbitals
it has a completely filled d orbital that causes d-d overlapping
In chromite ore, the oxidation number of iron, and chromium are respectively
+3,+2
+3,+6
+2,+6
+2,+3
In chromite ore, the oxidation number of iron and chromium are respectively
+3, +2
+3, +6
+2, +6
+2, +3
The spin only magnetic moment of Mn4+ ion is nearly
3BM
6BM
4BM
5BM
C.
4BM
The electronic configuration of Mn is
25Mn = [Ar] 3d5 4s2
Mn4+ = [Ar] 3d3
Thus, three unpaired electrons are present.
Spin only magnetic moment, µ=√n(n+2)
n = 3
µ =√3(3+2)
µ =√15 = 3.87
µ = 4 BM