Final answer:
Combining three quarks in a baryon results in integral charges.
Step-by-step explanation:
In particle physics, a baryon is a composite particle made up of three quarks.
The charge of each quark can be either +2/3 or -1/3.
When three quarks combine to form a baryon, their charges add up to an integral value.
For example, if we consider a combination of three quarks with charges +2/3, +2/3, and -1/3, their sum is +1, which is an integral charge.
Therefore, all combinations of three quarks produce integral charges, showing that baryons must have integral charge.