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Atoms

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Atoms. The basic component of all matter. The atom is the smallest particle of an element that has all of the chemical properties of that element. Atoms consist of a nucleus of protons and neutrons surrounded by electrons. http://www.ktf-split.hr/glossary/image/atom.gif. Elements.

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Atoms

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  1. Atoms • The basic component of all matter. • The atom is the smallest particle of an element that has all of the chemical properties of that element. • Atoms consist of a nucleus of protons and neutrons surrounded by electrons. http://www.ktf-split.hr/glossary/image/atom.gif

  2. Elements • A substance consisting of a single type of atom. • It cannot be broken down into different kinds of matter. http://www.reachoutmichigan.org/funexperiments/agesubject/lessons/handouts/helium.GIF http://www.rentrain.com/resources/Helium%20Safety.jpg

  3. Combinations of Elements:Mixtures • A substance consisting of two or more substances mixed together. • Mixtures can usually be separated by mechanical means. • Two or more substances mixed together in such a way that each remains unchanged. http://www.seelecttea.com/

  4. Combinations of Elements:Compounds • A substance formed from two or more elements, with a fixed ratio determining the composition. • The elements lose their individual chemical properties and the compound has new properties. http://www.awwu.biz

  5. Molecules • Compound of two or more atoms, the smallest unit of chemical compounds. • The smallest particle of a substance that has all of the physical and chemical properties of that substance. http://www.awwu.biz

  6. Formulas • The formula which identifies the atoms and the number of each kind in the molecules of a compound. • The number and types of atoms in a molecule. Glucose -C6H12O6

  7. Formulas 6C6H12O6 Elements in the compound: Carbon Hydrogen Oxygen

  8. Formulas:Subscripts 6C6H12O6 # of atoms of each element in a molecule of the compound: Carbon - 6 Hydrogen - 12 Oxygen - 6

  9. Formulas:Coefficients 6C6H12O6 # of molecules: 6 molecules of glucose

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