In `[NiCl_(4)]^(2-)` ,the number of unparied electron is

If the magnetic moment of [Ag(CN)_(2)]^(-1) is zero, then the number of unparied electrons will be

How many total number of unparied electrons in Gd are

In the third excited state the number of unparied electrons in chlorine atom is

Using valence bond theory account for the geometry and magnetic nature of [NiCl_(4)]^(2-) ion. ("Atomic number of Ni "= 28) .

The propery of a substance due to presence of unparied electrons is called

Among [Ni(CO)_(4)], [NiCl_(4)]^(2-), [Co (NH_(3))_(4) Cl_(2)] Cl, Na_(3) [CoF_(6)], Na_(2)O_(2) and CsO_(2) , the total number of paramagnetic compounds is