Chapter 2 Outline - Name Roy Lan Period#2 Chapter 2 The...

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Name: Roy Lan Period: #2 Chapter 2: The Chemistry of Life 2-1 The Nature of Matter Definitions Atom- The basic unit of matter. Nucleus- the center of the atom which contains the protons and neutrons; in cells, structure that contains the cell's genetic material (DNA) and controls the cell's activities Electron- negatively charged particle; located outside the atomic nucleus Element- substance consisting entirely of one type of atom Isotope- atom of an element that has a number of neutrons different from that of other atoms of the same element Compound- substance formed by the chemical combination of two or more elements in definite proportions Ionic bond- bond formed when one or more electrons are transferred from one atom to another Molecule- Smallest unit of most compounds. van der Waals forces- a slight attraction that develops between the oppositely charged regions of nearby molecules Atomic Structure Insert this image: Atom: The atom was named by Democritus and meant unable to be cut over 2500 years ago. They are
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