Final answer:
Protons (p+) are located in the nucleus and have a mass of 1.0073 amu with a positive charge. Neutrons (n) are in the nucleus too, have a mass of 1.0087 amu, and are neutral. Electrons (e-) orbit the nucleus, have a mass of 0.00055 amu, and a negative charge.
Step-by-step explanation:
The location, mass, symbol, and charge for protons, neutrons, and electrons are as follows:
- Proton: Located in the nucleus, a proton has a mass of approximately 1.0073 atomic mass units (amu) and carries a positive charge of 1+ (represented by the symbol p or p+).
- Neutron: Also located in the nucleus, a neutron has a mass of approximately 1.0087 amu and carries no charge, making it neutral (represented by the symbol n).
- Electron: Found in the space around the nucleus, an electron has a much smaller mass of about 0.00055 amu and carries a negative charge of 1- (represented by the symbol e-).
The atomic mass unit is a unit of mass used to express atomic and molecular weights, defined as one-twelfth of the mass of a carbon-12 atom. Protons and neutrons have almost the same mass, roughly 1 amu, and together with electrons, they make up an atom's structure.