Solutions? 21) For which of the following electron transitions in a hydrogen ato

Question

Solutions? 21) For which of the following electron transitions in a hydrogen atom light emitted have the longest wavelength? does the A. n=5ton=4 B. n=5to n=3 C. n=Sto n=2 D. n-Sto n=1 22) (T/F) Louis de Broglie predicted that a particle with mass m and velocity Ve should exhibit the behavior of a wave A. True. B. False 23) what is the wavelength of an electron (m-9.11 × 10-31 kg) moving at a velocity of 3.0 x 10' m/s (10% of the speed of light)? A) 2.4 x 10 10 m B) 2.4 × 10-1m C) 3.3 x 10 m D) 1.1 × 10.2 m 24) If n 2, how many orbitals are possible? (Hint: total number of orbitals in shell 2) A) 8 B) 4 C) 2 D) 9

Explanation / Answer

21)
longest wavelength is emitted for smallest energy difference
smallest difference energy is in between n=5 to n=4
Answer: A

22)
True

23)
wavelength = h/(m*v)
= (6.626*10^-34)/(9.11*10^-31*3.0*10^7)
= 2.4*10^-11 m
Answer: B

24)
for n=2, number of orbital = n^2
= 2^2
= 4

Answer: B

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