Interpretation:
The unacceptable set of quantum numbers in an atom is to be determined and an explanation for the same is to be given.
Concept introduction:
The principle quantum number
The principle quantum number designates the orbital size. The
The possible range of
The possible range of
The electron spin quantum number tells the electron spin in an orbital in space. The possible spins are
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- In the second row of the periodic table, Be, N, and Ne all have positive (unfavorable) electron affinities, whereas the other second-row elements have negative (favorable) electron affinities. Rationalize why Be, N, and Ne have unfavorable electron affinities.arrow_forwardExplain why each of the following sets of quantum numbers would not be permissible for an electron, according to the rules for quantum numbers. a n = 1, I = 0, mi = 0, ms = +1 b n = 1, I = 3, mi = +3, ms=+12 c n = 3, I = 2, mi = +3, ms=12 d n = 0, I = 1, mi = 0, ms=+12 e n = 2, I = 0, mi = 1, ms=+32arrow_forwardLight with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is 3.36 105 m/s, what energy was expended in removing the electron from the metal? Express the answer in joules (per electron) and in kilojoules per mole (of electrons).arrow_forward
- Which of the following statements is (are) true? I. The product of wavelength and frequency of light is a constant. II. As the energy of electromagnetic radiation increases, its frequency decreases. III. As the wavelength of light increases, its frequency increases. a I only b II only c III only d I and III only e II and III onlyarrow_forward• identify an orbital (as 1s, 3p, etc.) from its quantum numbers, or vice versa.arrow_forwardA bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. What amount of energy, in joules, must be released by an electron in a mercury atom to produce a photon of this light?arrow_forward
- Light with a wavelength of 425 nm fell on a potassium surface, and electrons were ejected at a speed of 4.88 105 m/s. What energy was expended in removing an electron from the metal? Express the answer in joules (per electron) and in kilojoules per mole (of electrons).arrow_forwardWhat is the maximum number of electrons that can be identified with each of the following sets of quantum numbers? In some cases, the answer may be none In such cases, explain why none is the correct answer. (a) n = 4, = 3, m = 1 (b) n = 6, = 1, m = 1, ms = 1/2 (c) n= 3, = 3, m = 3arrow_forwardExplain briefly why each of the following is not a possible set of quantum numbers for an electron in an atom. In each case, change the incorrect value (or values) to make the set valid. (a) n = 2, = 2, m = 0, ms = +1/2 (b) n = 2, = 1, m = 1, ms = 0 (c) n = 3, = 1, m = 2, ms = +1/2arrow_forward
- The energy emitted when an electron moves from a higher energy state to a lower energy state in any atom can be observed as electromagnetic radiation. (a) Which involves the emission of less energy in the H atom, an electron moving from n = 4 to n = 2 or an electron moving from n = 3 to n = 2? (b) Which involves the emission of more energy in the H atom, an electron moving from n = 4 to n = 1 or an electron moving from n = 5 to n = 2? Explain fully.arrow_forwardGive the possible values of a. the principal quantum number, b. the angular momentum quantum number, c. the magnetic quantum number, and d. the spin quantum number.arrow_forwardAccording to a relationship developed by Niels Bohr, for an atom or ion that has a single electron, the total energy, En, of an electron in a stable orbit of quantum number n is En = [Z2/n2] (2.179 1018 J) where Z is the atomic number. Calculate the ionization energy for the electron in a ground-state He+ ion.arrow_forward
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