Question

4.(11pts) (a)( 5pts) In class, the branching diagram for the n=1 and n=2 cases were developed. Write the branching diagram for the n=3 case. Clearly show the values of the various quantum numbers. (b) (pts) What is the DeBroglie wavelength of a proton having a speed of 1.5 x 103 ms 1. The rest mass of a proton is 1.6726 x 10-27 kg. (Ignore relativistic effects associated with the protons motion.) What physical meaning can be given to this DeBroglie wavelength? GENERAL CHEMISTRY I HOMEWORK ASSIGNMENT #7 (continued) 5.(12 pts) Identify the group of elements that correspond to each of the following generalized electron configurations. No partial credit. You should check your work using table 7.3 of text. (a) [Noble gas) ns?np5 (b) (Noble gas) ns (n-1)d? (c) (Noble gas) ns?(n-1)dºnp! (d) [Noble gas) ns”(n-2):

Answer 1

I= o to ni Mi = ti to od mg = + - n= 3 2 to a mos o S S-Obital ms H10 11 f-orbital ma= t1/2 + 1 2 + 1 - 2 ME A2 to 12 d - Osbi tal mg = + 1 1 2 1 2 3 4 1 2 2 2 2 2 2 2 2 mes= # 1 2 V = 1'5X1023 mars me 16726X10*2359 d = h e womentum Plant's contare da Plank'sco no da 6-626x1034 J.S 1.6726X16 *Trg x 15X103 m/s do 2.641 10.10 m A= 2.641 & 6 @ [Noble gas] usines - ® (Noble gas] nist (ud) of → © Crolle gas] ws? (nt)dlo up! → ③ [Noble gas] usz (1-2) ff - Fe, Br, I T', zx, H4 B, M, GA, In sm, pe (Group -17). (91728-4) (Group-13) (Gwuß-3)