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8.5A Atoms
Structure, Subatomic Particles Location, Mass and Charge
| Question | Answer |
|---|---|
| Nucleus | the tiny, very dense, positively charged region in the center of an atom; made up of protons and neutrons |
| Electron Cloud | the area surrounding the nucleus of an atom where the electrons are found |
| Electrical Charge | a property of matter; the number of protons and electrons determine the charge of an element |
| Proton | a positively charged subatomic particle of the nucleus of an atom that contributes to the mass of the atom |
| Neutron | a subatomic a particle of the nucleus of an atom that is without charge; contributes to the mass of an atom |
| Electron | a negatively charged subatomic particle that orbits the atomic cloud |
| Subatomic Particle | particles that are smaller than the atom |
| Chemical Formula | uses chemical symbols and numbers as subscripts to represent the type and number of atoms that are present |
| Atomic Mass | the mass of an atom; approximately equal to the number of protons and neutrons in the nucleus |
| Atom | the smallest particle of an element, made of protons, neutrons, and electrons |