What is the energy necessary to remove the electron

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Q. Use the Bohr theory to find the energy necessary to remove the electron from a hydrogen atom initially in the excited state with n = 2.

Q. A circular hole in an aluminum plate is 3.263 cm in diameter at 0.000°C. What is its diameter (in cm) when the temperature of the plate is raised to 129.8°C? Give your answer to four significant figures. The linear expansion coefficient of aluminum is 23.00 x 10-6 /C°.

Reference no: EM1347407

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