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英文字典中文字典相關資料:
  • What constitutes the mass of electron? - Physics Stack Exchange
    Electron has mass of $9 10938356 \times 10^{-31}$ kilograms Since an electron has mass, it should be made of some material I understood that electron is nothing but negative charge If this is the case what constitutes the mass of electron since charge does not contain mass? What is an electron made of in terms of matter (not as charge)?
  • How do you measure the mass of the electron very precisely?
    The biggest uncertainty in the predicted magnetic moment comes from the uncertainty in the electron's mass (more precisely: the mass of the unbound electron) So the experimenters turned it around: Since the measurement is more precise than the theoretically predicted value, they can make constraints on the electron's mass
  • Which has a greater mass an electron or a proton? - Answers
    In kilograms, an electron's mass is ~9 x 10^(-31) A proton's mass is ~1 7 x 10^(-27) The mass of the proton is more than 1000 times of an electron
  • What has the least mass - electron neutron proton nucleus?
    The proton has much more mass than the electron, by a factor of 1836 times, a ratio called "mu" Recent astronomical research suggests mu may have changed by 20 parts per million in the last 12
  • What is the charge and mass of a electron? - Answers
    The charge of an electron is -1 Specifically, it is about -1 602 x 10-19 coulombs The mass of an electron is about 9 109 x 10-31 kilograms, or about one 1836th that of a proton
  • Does the mass of an electron change with its energy state?
    The mass of an electron does not change with its increased energy (by absorbing photon energy) A photon does not have rest mass but energy, and such photon energy does not convert into mass, in whatever form - as per the equation E=mc^2
  • Relative mass of electron? - Answers
    If a proton had a mass of 1 what is the mass of an electron and neutron relative to the mass of the proton? If a proton would be 1, an electron would be 0 000544 An electron is 1,836 times
  • What has the least mass in an atom? - Answers
    Protons and neutrons both have a mass of 1 unit, whereas the mass of an electron is 1 1837 of that of a proton or a neutron Therefore, the electron has the least mass as its mass is considered
  • electromagnetism - Mass of the electron - Physics Stack Exchange
    According to Polchinski's String Theory, section 16 2, "the self-energy is roughly 20% of the mass of the electron" So even in the standard model, the yukawa coupling to the Higgs field is the dominant contribution to the electron mass, but it isn't everything
  • Mass of electron in grams? - Answers
    The mass of an electron is atomic mass units is 5,485 799 090 70(16); the mass of the electron is not an atomic mass What is an electron's atomic mass number? The electron has no atomic mass number





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