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How many quantum numbers designate each orbital?
AThree
BSeven
CEight
DEleven
Answer & Solution
Correct answer: A. Three
1. Orbitals are distinguished by quantum numbers.
2. Each orbital is designated by three quantum numbers, n, l and m.
3. So the correct answer is three.
_Source: syllabus Chemistry, Ch 2 'Structure of Atom'_
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