Answer to Question #121046 in Inorganic Chemistry for Rahul K

Question #121046
Which of the following statements are wrong?
Orbital angular momentum of 1s,2s and 3s electrons are same
Mn+7 is diamagnetic
Spin magnetic moment of Fe(0) is 6.92 B.M.
Percentage uncertainty in velocity of an electron in motion is equal to percentage uncertainty in its wavelength
Expert's answer

The permanganate ion (Mn+7) is diamagnetic since it has a tetrahedral structure with no unpaired electrons.

In 1s,2s and 3s orbitals , the orbital angular momentum of the electrons is the same since they have an equal of azimuthal quantum number .

where for all s orbitals l=0

FeO has 6 unpaired electrons.

Spin magnetic moment=

The last statement is not true because percentage of uncertainty in velocity of an electron in motion is not equal to the percentage uncertainty in its wavelength.

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