Question

Ground term symbol of Mn2+(25) is
Select one:
A. 3F2
Sici
SH
B. 2D3/2
des
C. 655/2
2003
G D. 504​

Answer 1

Answer:

it is not of English it is of science

Answer 2

Answer:

The electronic setup for Mn²⁺ is

1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵

To find the Ground state Term Symbol for Mn²⁺, first we really want to find number of microstates in 3d⁵. Presently why in 3d⁵ just, in light of the fact that

1s² to 3p⁶ all subshells are loaded up with electrons totally, there is no vacant space for electrons in these subshells. Just 3d⁵'s orbitals are not loaded up with electrons totally that is the reason we will figure out most extreme number of microstates of 3d⁵.

Complete number of microstates in a subshell = Maximum number of electrons! /(Available electrons)! (Most extreme number of electrons - Available electrons )!

where ! implies factorial.

In 3d⁵, greatest electrons can be 10 and accessible electrons are 5, so

All out number of microstates = 10!/5! 5! = 252

It implies there are 252 different ways where electrons can be filled inside 3d⁵.

However, the ground state will show up for following electron portrayal

To decide the ground state Term Symbol

The Russell Saunders term image that outcomes from these contemplations is given by:

⁽²ˢ⁺¹⁾Lⱼ

where S is the absolute twist quantum number. 2S + 1 is the twist assortment and L is the absolute orbital quantum number in spectroscopic documentation.

To decide ground state term image for 3d⁵

All electrons are in various orbital and with same heading turn.

S = 1/2 +1/2 + 1/2 + 1/2 + 1/2 = 5/2

so 2S + 1 = (2*5/2)+1 = 6

There is one Electron in all orbitals so

L = - 2-1+0+1+2 = 0

Assume it would be 3d⁴ (Cr²⁺ ) then L would be 2+1+0-1=2

For Mn²⁺, L = 0 it implies Its worth is S

J is all out rakish force. Its worth changes from L-S to L+S. For this situation J will be 5/2.

Rule for the worth of J , For not exactly half-filled sub-shells, the term with the most reduced worth of J is least in energy. That is the reason J would be 3/2 for 3d⁴ (Cr²⁺ ) yet it would be 9/2 for 3d⁷ (Ni³⁺).

For Mn²⁺, J's worth will be |L-S| to L+S, its worth will be 5/2

So the Ground Term image for Mn²⁺ is ²*⁽⁵/²⁾⁺¹Sⱼ = ⁶S₅/₂

The project code is #SPJ2.