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Calculate spin only magnetic moment for mn2+ and ni++

Answer»

Mn^{2+}<klux>NI</klux>^{2+}5.916\text{ BM},2.828\text{ BM}Answer : The spin only magnetic moment for and is respectively.

Explanation :

Atomic number of Mn = 25

Electronic configuration of Mn = 1s^22s^22p^63s^23p^64s^23d^5

Electronic configuration of Mn^{2+} ion = 1s^22s^22p^63s^23p^63d^5

The UNPAIRED ELECTRONS in Mn^{2+} ion = 5

  • Ni^{2+}For ion,

Atomic number of Ni = 25

Electronic configuration of Ni = 1s^22s^22p^63s^23p^64s^23d^8

Electronic configuration of Ni^{2+} ion = 1s^22s^22p^63s^23p^63d^8

The unpaired electrons in Ni^{2+} ion = 2

Formula used for spin only magnetic moment :

\mu_s=\sqrt{n(n+2)}

where,

\mu_s = spin only magnetic moment

n = number of unpaired electrons

Mn^{2+}The spin only magnetic moment for is,

\mu_s=\sqrt{5(5+2)}=5.916\text{ BM}

Ni^{2+}The spin only magnetic moment for is,

\mu_s=\sqrt{2(2+2)}=2.828\text{ BM}

Mn^{2+}Ni^{2+}5.916\text{ BM},2.828\text{ BM}Therefore, the spin only magnetic moment for and is respectively.



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