molecule

Section 6B Types of Bonds 1 Covalent Bonds usually nonmetals little or no ?EN (Therefore, atoms share electrons.) The 2 shared electrons are called a bonding pair. located between atoms most of the time Covalent Bonds The negative region between the atoms attracts the nuclei with an electrostatic force. Diatomic Elements H2 N2 O2 F2 Cl2 Br2 I2 ? triple bond ? double bond H N O Halogens Lewis Structures sometimes called dot diagrams show the valence e? only use a dash to represent a bonding pair Lewis Structures Cl2 + Cl Cl Cl Cl + Cl Cl Cl Cl Lewis Structures H2 + H H H H + H H H H Lewis Structures H2O + H O H + H O H + H O H + H O H Lewis Structures O2 O + O O O O + O O O Lewis Structures N2 N + N N N N + N N N Lewis Structures C2H2 + C C H + H + C C H H + C C H + H + C C H H

The Classification of Matter Matter Matter is described as ?anything that takes up space and has mass.? Matter Matter was created ex nihilo, which means ?from nothing.? Science Guess Scientific method Faith Observation Question How can we know where matter comes from? 4 Atom - Clipart.com Item #20307567 Organization of Matter Pure substances Mixtures Is a substancepure or a mixture? Determined by: Physical properties Chemical properties Physical Properties Physical properties can be measured without changing the material into another substance. They describe how a substance is by itself. The following terms are examples of physical properties: density density describes how the particles are packed into a material malleability malleability