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What’s a Matter?

What’s a Matter?. What is Matter?. Matter : Anything that takes up space and has mass Atom : Basic unit of matter Chemistry : The study of matter and all the changes it undergoes. Element : Kind of atom (oxygen, hydrogen etc…) Molecule : 2 or more atoms Compound : 2 or more elements

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What’s a Matter?

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  1. What’s a Matter?

  2. What is Matter? • Matter: Anything that takes up space and has mass • Atom: Basic unit of matter • Chemistry: The study of matter and all the changes it undergoes. • Element: Kind of atom (oxygen, hydrogen etc…) • Molecule: 2 or more atoms • Compound: 2 or more elements • Is O2 a compound or molecule? • Is H2O a compound or element?

  3. What Changes Does Matter Undergo? • Physical: The substance is still the same • Chemical: A new substance is formed

  4. What is a solid, liquid or gas? • Help Marvin the Martian understand what a solid, liquid and gas are! • Draw what solids, liquids, gases look like • What would happen if we increase the temperature? • What would happen if we decreased the temperature?

  5. What does an atom look like? • Atoms contain a nucleus with protons (+) and neutrons (no charge) and have electrons (-) flying around • Neils Bohr: Proposed the planetary model after studying a hydrogen atom in 1915.

  6. Electron Cloud Theory

  7. How do compounds form? • Ionic Bond: An electron is transferred from one element to another (metal to nonmetal) • Covalent Bond: Electrons are shared (nonmetal to nonmetal) • Metallic Bond: Sea of electrons (Metal to Metal)

  8. CLASSIFYING MATTER

  9. How do we use the periodic table of elements? Group IA: Alkali Metals Group VIIIA (O): Noble Gases Group IIA: Alkaline Earth Metals Other Nonmetals Group B: Transition Metals Metalloids Group VIIA: Halogens Other Metals

  10. How do we use the periodic table? (Number of protons/electrons) ( protons + neutrons)

  11. Which element has the atomic # 10? Which element has a mass of 4 amu? Which element is in period 3 and is a Noble Gas? 64 29 Cu +2 Who Am I? How many protons? How many electrons? How many neutrons?

  12. What are acids and bases? ACIDS BASES • TASTE SOUR BITTER • FEEL STINGS SLIPPERY • REACTIONS YES / METAL NO / METALS • CONDUCTS ELECTROLYTE ELECTROLYTE

  13. HOW DO WE MEASURE ACIDS AND BASES? INDICATORS A SUBSTANCE THAT TURNS ONE COLOR IN AN ACIDIC SOLUTION AND ANOTHER COLOR IN A BASIC SOLUTION SOME INDICATORS ARE: • LITMUS: DYE THAT COMES FROM A LICHEN • PHENOLPHTHALEIN: INDICATES ONLY BASES • UNIVERSAL INDICATOR: ACID, NEUTRALS, BASES • CABBAGE JUICE: ACIDS, NEUTRAL, BASE

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