# Magnetic moment and magnetic properties

1. Jan 7, 2016

### Suraj M

1. The problem statement, all variables and given/known data
Mn+2 has a higher magnetic moment than Fe+2 but practically Fe+2 is ferromagnetic right? So more magnetic right?

2. Relevant equations
$μ = √ (n(n+1))$

3. The attempt at a solution
For the Mn ion it comes to be √35 and for the ferrous ion √25
So yes Mn+2 is more paramagnetic but Fe+2 is more magnetic as a solid right?
I really don't know why
Could it be the alligator of the atoms in the solid?

2. Jan 8, 2016

### DrDu

Metallic solid iron is ferromagnetic and this is a complicated effect involving the interaction of the atoms. It makes no sense to say that ferrous ions are ferromagnetic.

3. Jan 8, 2016

### Suraj M

Ok Between Fe2+ or Mn2+
Which one produces a stronger magnetic field? Fe2+ right?