BSC 2010 Lecture Notes - Lecture 2: Octet Rule, Chemical Bond, Atom

• School: University of Florida
• Department: Biology - Biological Sciences
• Course: BSC 2010
• Professor: Han Kin- Lan, Mc Daniels, Gillolly

Document Summary

Lecture 1 - principles of life, science is based on quantifiable observations and experiments a. i. Inductive reasoning allows one to make to general conclusions based on a limited set of observations. a. ii. Living and nonliving matter is composed of atoms a. ii. Most atoms are neutral because the number of electrons equals the number of protons a. iii. Dalton-mass of one proton or neutron (1. 7 10 24 grams) a. iv. Element-pure substance that contains only one kind of atom a. v. Living things are mostly composed of 6 elements: a. v. 1. The number of protons identifies an element a. vi. 1. Mass #-total number of protons + neutrons a. viii. Behavior of electrons will determine whether a chemical bond will form and what shape the bond will have a. ix. Octet rule atoms with at least two electron shells form stable molecules so they have eight electrons in their outermost shells: atoms interact and form molecules b. i.