Passage VI

Quarks constitute 1 of the 3 classes of elementary particles that form all matter in the universe. Three quarks bound together form a type of particle called a baryon. A quark's effective mass (mass when bound to other quarks) is greater than its single-quark mass (mass when unbound). In addition, all quarks possess a property called spin. A quark's spin can be oriented in 1 of 2 directions, spin-up () or spin-down ().

Table 1 lists the symbol, electric charge, and approximate single-quark mass for each of the 6 quarks.

Table 2 gives the symbol, mass, quark content, and quark spins for several baryons.

Tables adapted from C. Amsler et al., "Review of Particle Physics." ©2008 by Elsevier B.V.

40. The 6 quarks are grouped into 3 generations as shown in the table below.

For which generation, if any, is the statement "Positively charged quarks are more massive than negatively charged quarks” NOT true?

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation

According to the question, you only need to select a positively charged quark quality Xiaoyu negatively charged quark in Generation.

Compared to table 1, the u in Generation 1 is positively charged, and the mass is smaller than the negatively charged d