JEE Mains · Chemistry · STD 11 - 2. structure of atom
Consider the following statements: \((A)\) The principal quantum number \('n'\) is a positive integer with values of \('n'=1,2,3, \ldots\). \((B)\) The azimuthal quantum number \('l'\) for a given \('n'\) (principal quantum number) can have values as \('l'=0,1,2, \ldots n\) \((C)\) Magnetic orbital quantum number \('m _{l}'\) for a particular \('l'\) (azimuthal quantum number) has \((2 l\) + 1) values. \((D)\) \(\pm 1 / 2\) are the two possible orientations of electron spin. \((E)\) For \(l=5\), there will be a total of \(9\) orbital. Which of the above statements are correct?
- A \(( A ),( B )\) and \(( C )\)
- B \(( A ),( C ),( D )\) and \(( E )\)
- C \(( A ),( C )\) and \(( D )\)
- D \(( A ),( B ),( C )\) and \(( D )\)
Answer & Solution
Correct Answer
(C) \(( A ),( C )\) and \(( D )\)
Step-by-step Solution
Detailed explanation
\((A)\) Number of values of \(n =1,2,3 \ldots \infty\) \((B)\) Number of values of \(\ell=0\) to \(( n -1)\) \((C)\) Number of values of \(m =-\ell\) to \(+\ell\) Total values \(=2 \ell+1\) \((D)\) Values of \(\operatorname{spin}=\pm \frac{1}{2}\) \((E)\) For \(\ell=5\) number…
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