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QJEEM23Chdec9: JEE Main 2023 Chemistry - Class 11 JEEM23Chdec9 Solution: Assume that the radius of the first Bohr orbit of hydrogen atom …

Assume that the radius of the first Bohr orbit of hydrogen atom is 0.6 Ao\mathrm{\mathop A\limits^o } . The radius of the third Bohr orbit of He +^+ is __________ picometer. (Nearest Integer)

Step-by-Step Verified Solution

Radius of 3rd Bohr orbit of He +3^{+3}

=0.6×(3)22= 0.6 \times {{{{(3)}^2}} \over 2}

=0.3×9= 0.3 \times 9

=2.7 Ao= 2.7\,\mathop A\limits^o

=270×10−12= 270 \times {10^{ - 12}} ppm

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