RushMyPassport.com is registered, but not affiliated, with the US Government. We charge an additional fee to expedite your passport in 1-12 days. If you are not in a rush, you can obtain a passport directly from the U.S. Department of State in 4-7 weeks.e charge an additional fee to expedite your passport in 1-12 days. If you are not in a rush, you can obtain a passport directly from the U.S. Department of State in 4-7 weeks.
Lesson Summary. The atomic mass unit (AMU) is used by scientists to describe the mass of atoms. If you want to convert a mass in grams to AMU, all you need to do is divide by 1.660599 x 10^-24 g/AMU. To unlock this lesson you must be a Study.com Member. Create your account.
Gamma rays are photons, so formally massless. Beta decay typically releases an electron or positron and a neutrino (which for all practical purposes is massless). The mass of an electron in (amu) is : 5.49e-4 amu. An alpha particle is a helium nucleus (2 protons, 2 neutrons). Its mass in amu is: 4.0012 amu.