Question

A particle has two down quarks and one up quark. What is the charge of that particle?

Answer 1

Answer:

The charge of the particle is 0.

Explanation:

A quark is an elementary particle of matter. Quarks combine to form Hadrons.

Quarks have fractional charges.

Up, charm and top quark has $+\frac{2}{3}$ charge.

Down, strange and bottom has $-\frac{1}{3}$ charge.

A particle which has two down quarks and one up quark will have net charge:

$2 \times (-\frac{1}{3})+1(+\frac{2}{3}) = 0$

Thus, the charge of the particle would be 0. It would be a neutral particle.

Neutron is composed of two down quarks and one up quark. It is a neutral particle.

Answer 2

The particle would be a neutron so a neutral charge. You can say the charge is 0.