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Author Question: A Hydrogen atom is excited to the n = 11 level. Its decay to the n = 7 level is detected in a ... (Read 19 times)

notis

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A Hydrogen atom is excited to the n = 11 level. Its decay to the n = 7 level is detected in a photographic plate. What is the wavelength of the detected emission?
 
  A) 7,510 nm
  B) 4,670 nm
  C) 12,400 nm
  D) 4,380 nm

Question 2

Express the sum 1.00 kg + 1531 g + 2.54  104 mg in kilograms with the correct number of significant figures.
 
  A) 2.56 kg
  B) 27.9 kg
  C) 2.53 kg
  D) 2.79 kg


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meltdown117

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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notis

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Reply 2 on: Jul 29, 2018
Excellent


ttt030911

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Reply 3 on: Yesterday
Gracias!

 

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