ENVT 0845 Chapter Notes - Chapter 3: Carbon, Sulfur, Oxygen
15 Mar 2018
School
Department
Course
Professor
Document Summary
Chapter 3: the physical science of the environment. Electrons the particles that orbit the nucleus as a cloud are called electrons. They are negatively charged and balance the positive electrical charge of the protons in the nucleus. Interactions with electrons in the outer orbits affect an atom"s chemical properties. Nucleus contains protons and neutrons; together these are called nucleons Neutrons have no electrical charge, and like protons, are about 1800 times as heavy as an electron. All atoms of an element (radioactive and non-radioactive) have the same number of protons. Protons and neutrons in the nucleus, and the forces among them, affect an atom"s radioactive properties. System - any interconnected set of components that acts as a whole. Ecosystem - a system where the components are organisms (plants, animals, microorganisms) Biogeochemical cycle: a pathway that a chemical follows as it cycles through the biota, soil, water, and the atmosphere.
