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The ratio of the speed of the electron in the ground state of hydrogen atom to the speed of light is（）
The ratio of the speed of the electron in the ground state of hydrogen atom to the speed of light is（）
A.2/137
B.1/237
C.1/2
D.1/137
正确答案：1/137
标签：
原子物理
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In hydrogen atom the angular momentum of the electron in the lowest energy state（）
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If the electron in hydrogen atom jumps from the third orbit to second orbit， the wavelength of th emitted radiation is given by（）