9.1*10^-31 kg
Electron and positron (anti-electron) have almost the same mass, with a negligible difference due to their opposite charge.
A proton is heavier than an electron. MASS(kg): Proton - 1.67 × 10-27kg Neutron - 1.67 × 10-27kg Electron - 9.11 × 10-31 kg *A neutron is about .1% heavier than a proton.
Atomic weight 11 corresponds to the element sodium (Na), which has an atomic number of 11. In terms of energy levels, sodium has three main electron shells: the first shell can hold up to 2 electrons, the second can hold 8, and the third shell has 1 electron. This configuration reflects its position in the periodic table and contributes to its chemical properties, particularly its reactivity and tendency to lose that single outer electron to achieve a stable electron configuration.
The electron configuration of beryllium is: 1s22s2. The atomic weight (not mass) of beryllium is 9,012 183(3).
9.1*10^-31 kg
an electron.
electron
all elements have an atomic weight, because all of them have electrons and protons, and every electron and proton have a weight.
electron mass = 9.10938188 × 10-31 kilograms = 0.000548579867 atomic mass units
Electron and positron (anti-electron) have almost the same mass, with a negligible difference due to their opposite charge.
VanadiumAtomic number: 23Symbol: VAtomic weight: 50.9415(1)Electron configuration: [Ar]3d34s2Group: 5BPeriod: 4
The mass of an electron is 9.109 382 15(45) × 10-31 kilograms (Kg). On Earth the weight of an electron is the mass times gravity. That is about 8.9278 x10-30. As a note, due to Newton's Second Law, which states F=ma, that is also the force of an electron of 1 Coulomb.
Yes, weight changes constantly as it moves through different parts of a gravitational field. However, its mass does not.
Listed in order of atmoic weight. Electrons have the majority of weight in the atom (proton, neutron, electron.)
If the electron were the size of a golf ball, the proton would be about the size of a basketball and the electron would be orbiting about 8000 meters away (assuming the Bohr model of the atom).
A neutron has no charge (neutron-neutral). It is simply there for weight.