Question Video: Identifying Subatomic Particles That Have a Unit Positive Charge | Nagwa Question Video: Identifying Subatomic Particles That Have a Unit Positive Charge | Nagwa

Question Video: Identifying Subatomic Particles That Have a Unit Positive Charge Physics

Which of the following particles have an electric charge of +1? [A] photon [B] electron [C] antimuon [D] tauon [E] proton [F] neutron [G] antitauon [H] muon

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Video Transcript

Which of the following particles have an electric charge of positive one? Photon, electron, antimuon, tauon, proton, neutron, antitauon, muon.

We can begin by eliminating particles we are most familiar with, the electron and the neutron. We only want particles that have an electric charge of positive one. And we know that the electron has a charge of negative one. Therefore, this cannot be one of our particles. We also know that a neutron is neutral or has a charge of zero. Therefore, we can eliminate neutron from our list as well. Along with the electron and the neutron, we should also be very familiar with the proton. A proton has an electric charge of positive one and is therefore one of the particles we are looking for. Looking back at our list, the first particle, the photon, the particle nature of light, does not have any charge and therefore can be eliminated from our list.

This leaves us with particles that are considered the charged leptons, antimuon, tauon, antitauon, and muon. We can recall the six charged leptons. The electron, which we have already eliminated, the muon, and the tauon all have a charge of negative one. And their associated antileptons, the positron, the antimuon, and the antitauon, all have charges of positive one. Referring back to our list, all of the particles that fall under the negative one column, the tauon and the muon, can now be eliminated. The antimuon and the antitauon are charged leptons with a value of positive one charge. The particles from the list that have an electric charge of positive one are the antimuon, proton, antitauon.

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