Here is the correct matching of the parts of an atom to their descriptions:
Column A | Column B --- | ---
- proton | a. positively charged particle
- neutron | b. neutral particle
- electron | c. negatively charged particle
- nucleus | d. the area of the atom where positive particles and neutral particles are found
- electron cloud | e. the area of the atom where negatively charged particles are found
So, the matches are: 1 - a 2 - b 3 - c 4 - d 5 - e