Aparticle that has no charge, has a mass of 1 amu and is located in the nucleus is a:
a. proton.
b. neutron.
c. electron.
d. quark.

B

Explanation:

Proton and Neutron are located in the nucleus of an atom. Electron evolves around or outside the nucleus.

Proton is positively charged while neutron has no charge with mass of 1 amu. Electron is negatively charged.

therefore, the particle with no charge and located in the nucleus is Neutron.

answer; i do believe the correct answer is (river); /// good luck