Structure of At...

The orbital angular momentum of an electron in 2s orbital is

Which of the following has maximum number of unpaired electrons?

The energy of an electron in the first Bohr orbit of H atom is – 13.6 eV. The possible energy value (s) of the excited state (s) for electrons in Bohr orbits of hydrogen is (are)

Which of the following is the main cause of late discovery of neutron?

Planck’s constant has the same dimensions as that of

The electrons, identified by quantum numbers n and l, (i) n = 4, l = 1 (ii) n = 4, l = 0 (iii) n = 3, l = 2 (iv) n = 3, l = 1 can be placed in order of increasing energy, from the lowest to highest, as

Which of the following configurations is correct for iron?

Principal, azimuthal and magnetic quantum numbers are respectively related to

The quantum numbers + 1⁄2 and –1/2 for the electron spin represent

The correct order of increasing energy of atomic orbitals is