Chemistry Of Life Compoun Doc

Chemistry of Life Compounds I.

Chemistry of life A. Matter 1. The Nature of Matter a.

Chemistry

b.

Matter

B. Atoms 1. Nucleus = center/core

a. consists of protons and neutrons b. Protons = positive charge... Neutrons = Neutral charge (1) Proton = +... neutron= no charge 2. Number of protons is called the atomic number a. protons = atomic # 3. Each atom has the same amount of electrons as protons a. Electron has negative charged particles b. thus, Electronic charge of the atom is zero (1) # electrons = # protons (2) 29 protons plus 29 electrons = 0 C. Compounds 1. Made of two or more elements a. Elements are not stable by themselves; thus, (1) they combine w/ other elements (2) forming compounds 2. Bonds a. Covalent Bond (1) This is when 2 atoms share one or more pairs of e' (2) Water (H20) is a molecule (a) 2 hydrogens and 1 oxygen b. Ionic (1) An e' is lost from one element to another. (a)

they then have a charge

(2) positive and negative charges attract, combine to forming (a) ioning bond (b) a molecule II.

Properties of Water

III. Carbon Compounds IV. Chemical Reactions and Enzymes.