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How is a positron different from an electron?
A positron is an electron's antiparticle. It has the same mass as an electron, but an opposite electrical charge.
What is the mass number of a positron?
The mass of a positron is approximately 9.1093826(16) × 10−31 kg. The positron and the electron are anti-particles of each other, and you can find out more about the positron at the Wikipedia article on that subject. A link to their post can be found below. There is also a link to a related question on the nature of the positron. That's down there, too.
The rest mass energy of an electron positron pair is?
The rest mass energy of an electron-positron pair is equivalent to the combined rest mass of the two particles, according to Einstein's equation E=mc^2. The rest mass energy can be calculated by adding the rest masses of an electron and a positron, which are equivalent to their respective rest masses multiplied by the speed of light squared.
What is the antiparticle of a positron?
The antiparticle of a positron is an electron. Both the positron and electron have the same mass but opposite charge, with the positron having a positive charge and the electron having a negative charge.
What is A subatomic particle that has no charge and very small mass is called?
Positron
Which type of radiation has a negligible mass and a charge of plus 1?
This is a positron.
What is the anti-matter equivalent of an electron?
The anti-matter equivalent of an electron is a positron. Positrons have the same mass as electrons but have a positive charge. When a positron and an electron collide, they annihilate each other, releasing energy in the form of gamma rays.
Does positron have a negative charge?
A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.
Why isn't electron and positron mass equal?
Their masses are equal. It's their charges that are opposite.
Are the rest mass of the positron and the electron exactly equal?
Yes; they simply have opposite charges.
Which of the following particles has the same mass as an electron but a positive charge and is sometimes emitted from the nucleus during radioactive decay?
The particle that has the same mass as an electron (9.11 x 10^-31 kg) but a positive charge and is sometimes emitted from the nucleus during radioactive decay is a positron. A positron is the antimatter counterpart to an electron and has a charge of +1.
What radionuclide decays to Br-73 by positron emission?
Work backwards. Positron emission means (essentially) a proton decayed into a neutron/positron pair. The mass number remains the same, but the atomic number goes down one to Bromine. Krypton has an isotope that fits this bill.
