Tiêu đề اسئلة-شابتر-7.pdf ✅

Chapter 7 ءايميكلا ينلاسا نع ءايميكلا
 Questions nm. 2- Q1 . Calculate the energy, in joules, of a photon with a wavelength of 5.00×10 a) 2.84 × 10-1 b) 4.11×10-15 J c) 6.63 × 10-15J d) 2.21 × 10-15 J e)3.98 × 10-15 J Q2 . Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the energy level with n=4 to the level with n = 1. a) 95.0 nm b) 97.3 nm c) 121 nm d) 145 nm e) 103 nm Q3 . The shape of an atomic orbital is associated with a) the angular momentum quantum number (l). b) the magnetic quantum number (ml). c) the magnetic and spin quantum numbers, together. d) The spin quantum number (ms). e) The principal quantum number (n). Q4 . Which one of the following sets of quantum numbers can correctly represent a 3p orbital? a) n =3, l = 1, ml = 2 b) n = 1, l = 3, ml = 3 c) n = 3, l = 2, ml = 1 d) n = 3, l = 1, ml = -1 e) n = 3, l = 0, ml = 0 Q5 . What is the wavelength of a photon of electromagnetic radiation whose frequency is Hz . 15 4.20 × 10 a) 71.4 nm b) 32.6 nm c) 98. 4 nm d) 51.7 nm e) 41.7 nm g 24- 6Q . Calculate the wavelength of the wave associated with a proton (mass = 1.67 × 10 m/s 3 ) moving at a speed of 1.90 × 10 a) 0.426 nm ءايميكلا b) 0.209 nm c) 0.153 nm d) 0.137 nm e) 0.180 n ينلاسا نع ءايميكلا
Q7 . Calculate the frequency ( in Hz) of the electromagnetic radiation emitted by the hydrogen atom in undergoing a transition from the n = 5 level to then n = 3 level . a) 2.74 ×1014 b) 7.64 ×1014 c)1.60 ×1014 d) 2.34×1014 e) 2.98 ×1014 8Q . Which one of the following sets of quantum numbers is not acceptable ? a) n = 4 , l = 3 , m l = 3 , m- s = + 1/2 b) n = 4 , l = 2 , m l = +2 , ms = 1/2 - c) n = 4 , l = 4 , m l = +2 , ms = + 1/2 d) n = 4 , l = 1 , m l = 0 , m s = +1/2 e) n = 4 , l =1 , m l =0 , ms = +1/2 2- . 9Q Calculate the Energy (in joules) of 1 mole of photons with a wavelength of 10.00 × 10 nm (X ray region). J 15 - J c) 1.99 ×10 -24 J b) 1.99 ×10 9 a) 1.20 ×10 J e) 1.20 J 39- d) 3.30 × 10 Q10.. Calculate the wavelength (λ) of the light emitted by a hydrogen atom during a transition of its electron from the energy level with n=2 to the level with n=1. a) 1.0 × 10 9- nm b) 95.0 nm c) 122 nm d) 97.3 nm e) 103 nm g that is moving with a 26- Q1 .1 Calculate the frequency of a particle with mass = 1.00 ×10 cm/s. 2 speed of 9.5x10 -s 9 e) 1.4x10 1-s 13 d) 4.3x10 1-s 16 c) 4.3x10 1-s 19 b) 4.3x10 -1 s 12 a) 1.4x10 ينلاسا نع ءايميكلا
Q12. In tne quantum mechanical treatment of the hydrogen atom, which one of the following combinations of quantum numbers is not allowed? n l m l a. 3 3 0 b. 3 1 -1 c. 3 2 2 d. 3 2 -1 Q13. for the electron configuration (1s2 2s2 2p4 ) how many electrons have the angular momentum quantum number l = 1 a) 4 b)1 c) 3 d) 2 e)5 Q14. Calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n1 = 2 to n2 = 4 1-s 12 b. 3.902 × 10 1-s 6 a. 2.056 × 10 1-s 15 e. > 10 1-s 14 d. 8.226 × 10 1-s 14 c. 6.17 × 10 Q15.Which of the orbitals below do not exist due to the constraints upon the angular quantum number ? A.3f B.3d C.3p D.3s Q16. The energy of an electron in the hydrogen atom is determined by: a. The principal quantum number (n) only . b. The angular momentum quantum number (l) only. c. The principal and magnetic quantum numbers ( n&ml ). d. The principal and angular momentum numbers ( n& l ). e. The principal , angular momentum and magnetic quantum numbers. ينلاسا نع ءايميكلا