Final answer:
Atoms consist of protons, neutrons, and electrons. Protons and neutrons, found in the nucleus, are charged and neutral respectively, and contribute to the atom's mass. Electrons are negatively charged, have minimal mass, and orbit the nucleus.
Step-by-step explanation:
Atoms are made up of subatomic particles: protons, neutrons, and electrons.
- Protons are positively charged and are located in the nucleus. They, along with neutrons, make up the mass of the atom.
- Neutrons have no charge and are also located in the nucleus. They contribute to the atom's mass along with protons.
- Electrons are negatively charged, have the smallest mass of the subatomic particles, and are located in orbitals surrounding the nucleus. When the number of electrons equals the number of protons, the atom is neutral. Electrons were discovered by J.J. Thomson.
Here's how each characteristic aligns with the subatomic particles:
- Are negatively charged - Electrons
- Have the smallest mass of the subatomic particles - Electrons
- When these are equal, the atom is neutral - Protons and Electrons
- Are located in orbitals surrounding the nucleus - Electrons
- Are positively charged - Protons
- Are located in the nucleus - Protons and Neutrons
- Are subatomic particles - Protons, Neutrons, and Electrons
- Were discovered by Thomson - Electrons
- Make up the mass of the atom - Protons and Neutrons
- Do not have a charge - Neutrons