AST201H1 Study Guide - Final Guide: Electronvolt, Electric Potential Energy, Spectroscopy

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST201H1
• Professor: Stefan Mochnacki

Document Summary

Atomic structure: protons positively charged particles in the nucleus of an atom, neutrons neutral charge; in nucleus with protons, electrons neg. charge; float around nucleus in a cloud , nucleus where protons and neutrons are. Properties of atoms depend on electrical charge of nucleus. Total electric charge is always conserved (like energy) Electric charge of a neutron = 0 (no charge) Opposite charges attract (proton + electron) /same charges repel (proton + proton) Atomic number number of protons in the nucleus of an atom. Isotopes versions of atoms with different atomic masses (more or fewer neutrons) Compound molecule molecule with more than one type of atom (e. g. h20) Chemical bond interactions between electrons that hold atoms of molecules together. Temperature a measure of the average kinetic energy of the particles in a substance. Evaporation process by which molecules escape from a liquid. Sublimation process by which molecules escape from a solid.