Which of the following orbitals has the lowest energy? 4d, 4f, 5s, 5p

Whichof the following orbitals are possible ? IP, 2s, 2p and 3 f

General electronic configuration of actionoids is [Rn] 5f^(1-14) 6d^(0-1) 7s^2 . Which of the following actionoids have one electron in 6d orbital ?

Gadolinium belongs to 4f series. It’s atomic number is 64. Which of the following is the correct electronic configuration of gadolinium ?

Arrange the following orbitals of H-atom in the increasing order of their energy. 3p_(x),2s,4d_(xy),3s,4p_(z),3p_(y),4s

Find the derivative of the following function (it is to be understood that a, b, c, d,p, q, r and s are fixed non-zero constants and m and n are integers): x^4(5sinx-3cosx)

Solve the following equations: p/4 = 5

List the value of n and l for the following orbitals : (3) 4f