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JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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The de Broglie's wavelength of electron present in first Bohr orbit of

\mathrm{H}

atom is

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Correct option: B

2 \pi \times 0.529 \, \mathop {\text{A}}\limits^ \circ

The correct answer is B;

2 \pi \times 0.529 \, \mathop{{\text{A}}}\limits^ \circ

. The de Broglie wavelength is equal to the circumference of the first Bohr orbit.

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in magnesium atom is The nucleus and an atom can be assumed to be spherical. The radius of the nucleus of mass no. A is given by

1.25 \times {10^{ - 13}} \times {A^{1/3}}\mathrm{cm}.

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