Atomic particle with a positive charge.

(a)  

Atomic particle with a neutral charge.

(a)  

Composes a nucleon.

(a)  

A nuclear force that held together quarks inside the nucleon.

(a)  

Area where electrons revolve.

(a)  

Refers to neutron or proton.

(a)  

Building blocks of matter.

(a)  

A substance whose molecules cannot move freely.

(a)  

A change in matter but the particles are still the same.

(a)