Scientists use atomic mass units (amu) or unified atomic mass units (u) to measure the mass of atoms and their subatomic particles. These units are based on the mass of a carbon-12 atom and are commonly used in the field of nuclear and particle physics.
A proton is a particle that has a mass of 1 and a charge of 1 plus.
A beta particle is an electron, this has a mass much less than a proton or neutron and so was can use zero in most situations. However in some calculations for mass defect of whole atoms and Q-value calculations in nuclear decays it can become important, in these calculations. An electron has a mass of 511 keV/(c^2), and an AMU is 931 MeV/(c^2). So, dividing the electron mass by the AMU mass, we get the mass of the beta in AMU: 511/931000 = 0.00055 AMU.
The escape velocity of a particle of mass m is independent of the mass of the particle. It is solely dependent on the mass and radius of the object it is trying to escape from. The escape velocity is given by the formula: (v = \sqrt{\frac{2GM}{r}}), where G is the gravitational constant, M is the mass of the object, and r is the distance from the center of the object to the particle.
Mass
The neutron is the subatomic particle that has the same mass as a proton. Both have a mass of approximately 1 atomic mass unit.
electron
An electron has a much smaller mass than any atom.
An electron has the smallest mass compared to a proton and a neutron.
Protons and neutrons.
Neutrons.
Size on the scale of atoms is very hard to define. The electron has zero mass. Quarks have varying amounts of mass.
A particle with a large mass and a positive charge could be a proton. Protons are fundamental particles found in the nucleus of atoms and carry a positive charge. They have a mass approximately 1836 times that of an electron.
Protons and neutrons account for most of an atom's mass. Electrons have a very small mass compared to protons and neutrons.
The atomic mass of an element tells you how heavy its atoms are compared with atoms of other elements. Atomic mass is the average mass of an atom of an element, taking into account all its isotopes and their abundance.
These particle are neutrons and protons; they are located in the atomic nucleus.
An alpha particle is larger and has more mass than a beta particle. An alpha particle is made up of two protons and two neutrons, giving it a mass of 4 atomic mass units, whereas a beta particle is much lighter and has a mass close to that of an electron. Size-wise, an alpha particle is larger in diameter compared to a beta particle.