0
First of all: the Atomic Mass unit is a relative number, that can tell us a bit about the 'mass of atoms' in relation to each other. Scientists introduced it because protons, neutrons and electrons have a very small mass, and with a relative scale, we could make things a lot easier. So, if we look on the internet, we find that: Protons weigh 1.672 * 10^-27 kg. Neutrons weigh 1.675 * 10^-27 kg. Electrons weigh 9.110 * 10^-31 kg. This is the absolute mass these three particles have. Because, however, all elements of the Periodic Table are composed out of these three particles, we gave them a relative weight. As such, protons and neutrons have a weight of '1', while electrons have a weight of '0'. As such, we have defined that carbon 12 (the most common isotope of carbon) has a relative mass of 12,000 u (u is here the atomic mass unit). Carbon 12 exists out of 6 protons, 6 neutrons and 6 electrons. Since electrons aren't on the relative scale, this scale is far from perfect. Also, as Einstein proved, there is a 'mass defect' (about which you should read on Wikipedia), which explains why hydrogen (and other elements ofcourse) doesn't have an atomic mass of exactly 1 u. If you can do the maths, a proton in carbon 12 doesn't have the exact weight of 1 u. So the answer is no. A different way of seeing this is looking at your periodic table. As you can see, hydrogen has a mass of 1.006 (or 1.007) u. Hydrogen has only 1 proton and 1 electron, so even without the electron the mass is still over 1.000 u.
What else can I help you with?
What two subatomic substances have a mass of about 1 amu?
The proton an neutron both have a mass of about 1 amu. (Both have a mass just slightly above 1 amu, and the neutron's mass is slightly larger than that of a proton.)
What is equal to the mass of a proton?
The neutron has about the same mass as the proton, each has a mass a tiny amount greater than 1 AMU (atomic mass unit). The neutron is the smallest bit more massive.The electron has a mass of just a bit over 5/10,000ths of an AMU. Extremely less massive in comparison, isn't it!
What particle has the same mass as a neutron?
A positron, a neutron, a single proton, and a single electron are all considered to be equal in mass, however, a positron is generally referred to as an "anti-electron", as it travels at the velocity of light (like an electron), an has a positive charge (+1e, as opposed to an electron, which carries a negative charge, i.e: -1e).
What is the amu of a beta particle?
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.
Which subatomic particle is least massive?
The three main subatomic particles are the proton, neutron, and electron. Of these three, the electron has the least amount of mass at about 0.0005 amu or atomic mass units.
What are the mass and charge for each sub-atomic particle?
In the atom: Neutron: Mass: 1,00866491600(43) amu. Electron: Mass: 5,4857990946(22)×10−4 amu. Proton: Mass: 1,007276466812(90) amu.
What sub-atomic particles have a mass of 1 amu?
neutrons and protonsbut NOT electrons (the almost have no mass)
Which of the atomic particles have a mass of one atomic mass unit?
Both the proton and the neutron have a mass of approximately one atomic mass unit (amu). The proton has a mass of 1.00728 amu and the neutron has a mass of 1.00867 amu.
What two subatomic substances have a mass of about 1 amu?
The proton an neutron both have a mass of about 1 amu. (Both have a mass just slightly above 1 amu, and the neutron's mass is slightly larger than that of a proton.)
What is the mass of the 3 subatomic particles?
Neutron: Mass: 1,00866491600(43) amu. Electron: Mass: 5,4857990946(22)×10−4 amu. Proton: Mass: 1,007276466812(90) amu.
What is the mass of each particle?
Proton: 1.007276466812(90) amu. Neutron: 1.00866491600(43) amu. Electron: 5,857990946(22)×10−4 amu.
An atom of tritium an isotope of hydrogen has 1 proton 2 neutrons and 1 electron What is its mass in amu?
The mass of tritium (T) can be calculated by adding the masses of its constituents. The mass of a proton is approximately 1.0073 amu, the mass of a neutron is approximately 1.0087 amu, and the mass of an electron is negligible. So, the mass of tritium would be approximately 3.016 amu.
What is the atomic mass unit for neutron and electrons?
The atomic mass unit is approximately the mass of one neutron or proton. An electron has a mass of approximately 1/2000 of an amu.
What subatomic particle has an approximate mass of 1840?
The electron has an approximate mass of about 1/1840 that of a proton, which is approximately 1 atomic mass unit (amu).
What is the mass on proton neutron electronic?
The mass of a proton or neutron is approximately 1 amu. The mass of an electron is about 1/1836th of an amu. In chemistry, the mass of electrons is usually treated as insignificant (certain very precise measurements can actually detect them, but treating the atom as if all its mass was in the nucleus is "good enough" for most purposes).
What is equal to the mass of a proton?
The neutron has about the same mass as the proton, each has a mass a tiny amount greater than 1 AMU (atomic mass unit). The neutron is the smallest bit more massive.The electron has a mass of just a bit over 5/10,000ths of an AMU. Extremely less massive in comparison, isn't it!
What is the mass of a proton that is approximately to the mass of a neutron?
1 amu (atomic mass unit)
