2. the nucleus of an atom contains: clear all ○ only neutrons ○ protons and electrons ○ protons and neutrons…

2. the nucleus of an atom contains: clear all ○ only neutrons ○ protons and electrons ○ protons and neutrons ○ electrons and neutrons
Answer
Brief Explanations:
The nucleus of an atom is composed of protons, which have a positive charge, and neutrons, which are neutral in charge. Electrons are located outside the nucleus in electron - shells.
Answer:
Protons and neutrons