Calculate n, l, m and s for 4f and 3d electrons.

Calculate n, l, m and s for 4f and 2p electrons.

Give all possible values of l, m _(l) and m _(s) for electrons when n =3.

Calculate the de-Broglie wavelength for electron moving with speed of 6 xx 10^5 m s^(-1) .

Calculate the de_Brogile.s wavelngth of an electron.

Calculate number of electron present in 9.5" g of" PO_(4)^(3-) :

Calculate standard entropy change in the reaction Fe_(2)O_(3)(s)+3H_(2)(g) rarr 2Fe(s)+3H_(2)O(l) Given : S_(m_(0))(Fe_(2)O_(3), s)=87.4,S_(m)^(@)(Fe,s)=27.3 S_(m)^(@)(H_(2),g)=130.7,S_(m)^(@)(H_(2)O,l)=69.9JK^(-1)mol^(-1)

Calculate the wavelength associated with an electron moving with a velocity of 10^(3) m s^(-1).

If n and l are respectively the principal and azimuthal quantum numbers , then the expression for calculating the total number of electrons in any energy level is :

What is the value of n and l , if orbital of element is 4d