Consider the following statements. (I) The product of the uncertainties in position and momentum is at least h /4 π . (II) The orbital angular momentum of an s-electron is zero. (III) The 3p orbital h

Question

Consider the following statements.

(I) The product of the uncertainties in position and momentum is at least $h /4 π$ .

(II) The orbital angular momentum of an s-electron is zero.

(III) The 3p orbital has two radial nodes.

(IV) The de Broglie wavelength of a moving particle is inversely proportional to its momentum.

Which of the statements are correct?

TestHub · Accepted Answer

(I) True: Δ x Δ p is at least h /4 π . (II) True: ℓ = 0 . (III) False: radial nodes = n − ℓ − 1 = 3 − 1 − 1 = 1 . (IV) True: λ = h / p . Answer: (A).

Chemistry - Atomic Structure Question with Solution | TestHub