How many moles of O2 are required to generate 18 moles of H2O in the given reaction?
2 answers:
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Answer:
Brackett Series (n = 4)
Explanation:
The least energetic line of Hydrogen atom lies in <em>Brackett Series </em>when n = 4 because these are least energetic, have longer wavelengths and lies in Infrared region of spectrum. No traces of <em>Pfund series </em>are formed by H=atoms.
Uranium is in the "f" block, because it's external electron configuration is 