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Matter

Matter. The Stuff of Everything… …even water and life. What is matter?. Three Properties of Matter : has mass takes up space shows inertia ( force needed to change motion ). What is matter?. Four states of matter: Solid Liquid Gas Plasma. Can matter change?.

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Matter

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  1. Matter The Stuff of Everything… …even water and life

  2. What is matter? • Three Properties of Matter: • has mass • takes up space • shows inertia(force needed to changemotion)

  3. What is matter? • Four statesof matter: • Solid • Liquid • Gas • Plasma

  4. Can matter change? • Matter can changein two ways: • Physical– a change in the appearanceor stateof matter • Chemical– a change in the chemicalmake-up of matter

  5. Can matter change?

  6. What is matter made of? • Composition of matter: • Elements • Compounds • Mixtures

  7. What is an element? • An element is a basicsubstance of matter and cannot be broken down by chemical means. • There are about 90naturally occurring elements. 117 have been discovered.

  8. What is an element? • Elements are represented by chemical symbols (letters) shown in the PeriodicTableoftheElements.

  9. Common Elements of Life

  10. What is an element? • The smallestunit of an element is an atom. • Atoms are the buildingblocks of matter.

  11. What is an atom? Atom Electron Proton Nucleus Neutron

  12. What is an atom? • Atoms have 3 subatomic particles:

  13. What is an atom? • Electrons orbit atoms in levels called shells. • Atoms like to have their shells filled.

  14. What is an atom? • K or 1stShell – closest to the nucleus holding up to 2 electrons • L or 2ndShell – can hold up to a maximum of 8 electrons • M or 3rdshell – can hold up to a maximum of 18 electrons

  15. What is an atom? • The number of protons (atomicnumber) in an atom will determine its elemental properties. • The periodic table of the elements shows known elements bytheiratomic number.

  16. What is an atom? • In atoms, the number of protons equals the number of electrons giving the atom an overall neutral charge. • The number of protons plus neutrons in an atom is the atomicmass number.

  17. Using The Periodic Table Atomic Number Element Symbol Element Name Atomic Mass

  18. Using The Periodic Table 8 8

  19. Using The Periodic Table

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