BIOL 1020 Lecture Notes - Radiocarbon Dating, Ionic Bonding, Periodic Table

• School: Auburn University
• Department: Biology
• Course: BIOL 1020
• Professor: Anne- Marie Singh

Document Summary

Overview: in many ways, life can be viewed as a complicated chemical reaction. Modern models of how life works at all levels typically have at least some aspect of chemistry as a major component or underpinning: elements and atoms. An atom is the smallest unit of an element that still retains the properties of that element. The further away an orbital carries an electron from the nucleus, the higher the energy level of the electron. Different masses) are referred to as isotopes nuclei can undergo changes (deca: atomic. Some isotopes are more stable than others (most unstable = radioisotopes) Decay rates are statistical averages, and are used for measuring time passage in many areas of: electrons with similar energies make up an electron shell. The outer electron(s) are known as the valence electron(s); collectively, they occupy the valence shell. The chemical properties of an atom are largely determined by the valence electrons.