EOSC 114 Lecture Notes - Lecture 19: Unified Atomic Mass Unit, Atomic Orbital, Ion

• School: UBC
• Department: Earth and Ocean Sciences
• Course: EOSC 114
• Professor: John Sherman

Document Summary

Neutron: don"t follow a strict distribution amongst elements. About equal number of neutrons as protons in an atom. Larger atoms generally have more neutrons than protons. Protons and neutrons located in nucleus of an atom. Electrons orbit the atomic core in an unpredictable but organized electron cloud. Strong atomic forces keep neutrons and protons tightly packed in a dense cluster. Define the terms atomic mass, cation, anion, element, compound and mixture. Atomic mass: the total number of neutrons and protons. Electrons so small that they don"t contribute to mass.