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JEE Main & Advanced Sample Paper JEE Main Sample Paper-22

  • question_answer
    Which orbit of \[B{{e}^{+3}}\] has the same orbit radius as that of the ground state of hydrogen atom

    A)  3                                

    B)  2

    C)  4                                

    D)  5

    Correct Answer: B

    Solution :

    \[r=0.529\,\times \frac{{{n}^{2}}}{Z}\overset{\text{o}}{\mathop{\text{A}}}\,\]n = 2 for \[Z=4(B{{e}^{+3}})\]


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