JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic models and Planck's quantum theory

  • question_answer
    Radius of the first Bohr's orbit of hydrogen atom is  [RPET 2000]

    A) \[1.06\,{AA}\]

    B) \[0.22\,{AA}\]

    C) \[0.28\,{AA}\]

    D) \[0.53\,{AA}\]

    Correct Answer: D

    Solution :

    Bohr's radius of the hydrogen atom                    \[r=\frac{{{n}^{2}}\times 0.529{AA}}{z}\]; where z = Atomic number,                               n = Number of orbitals


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