Which metal ion has a d7 electron configuration?

of the metal ion. Atom of Cobalt has electron configuration [Ar] 3d74s2 Oxidation state of cobalt in [Co(NH3)6]2+ is Co2+, as NH3 ligands have no charge. Atom of Co loses two electrons to become an ion Co2+ which has d7 electronic configuration.

Is Co2+ d7?

The d-electron configuration of Co2+ and Cu2+ is d7 and d9 respectively. Paramagnetic behaviour depend on the number of unpaired electron.Co2+ contains 3 unpaired electrons while Cu2+ contains only one unpaired electron.

What is the expected electron configuration of a Co3+ ion?

The electron configuration of Co3+ is [Ar]4s3d5 . Co is in Period 4 of the Periodic Table, and Ar is the preceding noble gas. Cobalt is also in Group 9, so it must have 9 valence electrons. When a transition metal forms an ion, the s electrons are removed before the d electrons.

What are d8 complexes?

Complexes which are d8 high-spin are usually octahedral (or tetrahedral) while low-spin d8 complexes are generally 16-electron square planar complexes. For first row transition metal complexes such as Ni2+ and Cu+ also form five-coordinate 18-electron species which vary from square pyramidal to trigonal bipyramidal.

Is CoF6 3 paramagnetic?

[CoF6]3- is paramagnetic. This complex is called high spin or spin free complex. When NH3 ligand attacks the central metal ion Co3+ , pairing of electrons in 3d orbital occurs against Hund’s rule.

Is CoF6 3 high or low spin?

As a result, the Co3+ ion will undergo sp3d2 hybridzation. The complex formation involves d-orbitals of the outershell which give a high spin complex.

Can d7 be low spin?

Only the d4 through d7 cases can be either high-spin or low spin. Πe only counts for electrons at the same energy!

How do you know if something is high or low spin?

Another method to determine the spin of a complex is to look at its field strength and the wavelength of color it absorbs. If the field is strong, it will have few unpaired electrons and thus low spin. If the field is weak, it will have more unpaired electrons and thus high spin.

What is the Unabbreviated electron configuration of silver?

[Kr] 4d¹⁰ 5s¹
Silver/Electron configuration

Why DD transition is forbidden?

In complexes of the transition metals, the d orbitals do not all have the same energy. In centrosymmetric complexes, d-d transitions are forbidden by the Laporte rule. Tetrahedral complexes have somewhat more intense color. This is because mixing d and p orbitals is possible when there is no center of symmetry.