Question

Select the false statement below : Fe2+ is more paramagnetic (has more unpaired electrons) than Fe3+ Fe3+ is isoelectronic with Mn2+ Fe has 2 outer electrons, 8 valence electrons, and 18 core electrons Fe3+ is predicted to be a stronger potential oxidizing agent (can be reduced more) than Fe2+ none of these ions (Fe2+, Fe3+, Mn2+) have any electrons in the 4s subshell

Answer 1

Answer:

Fe2+ is more paramagnetic (has more unpaired electrons) than Fe3+

Explanation:

Hello,

In this case, paramagnetism is defined as a form of magnetism by which some materials, specifically metals are weakly attracted by an externally exerted magnetic field, and consequently form internal, induced magnetic fields in the direction that it is applied, in order words, attracted by a magnet. In such a way, since iron (II), Fe²⁺ has less unpaired electrons, it turns out more paramagnetic than iron (III), Fe³⁺, that is why this statement is false.

Best regards.

Answer 2

hey there!:

1) none of these ions ( Fe²⁺ , Fe³⁺ , Mn²⁺ 0 have any electrons in the 4s subshell .  ( TRUE )

2) Fe²⁺ is more paramagnetic ( has more unpaired electrons ) than Fe³⁺.

( FALSE )  explanation :

* Fe²⁺ has no free electrons and is diamagnetic

* Fe³⁺ has one unpaired electron and is paramagnetic

3) Fe³⁺ is isoeletronic with Mn²⁺ . ( TRUE )

4) Fe has 2 outer electrons , 8 valence electrons , and 18 core eletrons. (TRUE )

electron configuration  Fe = 1s², 2s², 2p⁶, 3s² , 3p⁶, 4s² , 3d⁶ or :

[Ar] = 4s²  , 3d⁶

5) Fe³⁺ is predicted to be a stronger potencial oxidizing agent  ( can be reduced more ) than Fe²⁺   ( TRUE )

Hope this helps!