The electron is fundamental, but it is not a quark. Check the flavor list: up, down, charm, strange, top, bottom. The electron is not on it. So the particle map needs a second family.
Sort the fundamental matter particles you know into two piles. One pile holds the six quark flavors. The fundamental matter particles that are not quarks form the second pile.
The particles in the second family are called leptons. The electron is a lepton, the most familiar one.
Is the electron a quark or a lepton?
A fundamental matter particle is checked against the six quark flavors and matches none of them. Which family is it in?
The fundamental matter particles that are not quarks are leptons.
It is a lepton.
Which particles make up the lepton family?
Type the family name for fundamental matter particles that are not quarks.
Which statement about the electron is correct?
A new fundamental matter particle is discovered, and it is not one of the six quark flavors. What is it?
Which pairing of particle and family is correct?