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Bellwork : (Write the definition) What is an element? (see page 235)

SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures. Bellwork and Plan. JAN 4, 2013. Bellwork : (Write the definition) What is an element? (see page 235) What is a compound? (see page 238) What is a mixture? ( see page 242) Plan Discuss bellwork and objective New seating chart

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Bellwork : (Write the definition) What is an element? (see page 235)

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  1. SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures Bellwork and Plan JAN 4, 2013 • Bellwork:(Write the definition) • What is an element? (see page 235) • What is a compound? (see page 238) • What is a mixture? ( see page 242) • Plan • Discuss bellwork and objective • New seating chart • Pass out dry erase boards and markers • Notes presentation • Review Activity • Closure activity 0

  2. SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures Notes JAN 2013 • What Is An Element? • a substance that CANNOT be broken down into a simpler substance by CHEMICAL means. • In other words…you CANNOT change one element into a differenr element with a chemical reaction • Each individual element is a unique particle called an atom • So in other words…elements are the different types of atoms PRESS THE RIGHT-ARROW BUTTON ON YOUR KEYBOARD TO ADVANCE THROUGH THE SLIDES!  3 Li Example: Lithium is an element. Here is one lithium atom Example: Lithium Lithium 6.9 1

  3. SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures Notes • Elements Continued: • We use a chart to organize elements called… • the PERIODIC TABLE • Currently scientists believe there are only 98 naturally occurring elements in the universe • (Reference link: Chemistry Website • We have created 20 man-made elements for a total of 118 2

  4. SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures Notes • Elements Continued: • Elements’ names always start with a capital letter • Can be followed by one or more lower case letters • Examples: • H = the element hydrogen • represents one hydrogen atom • Na = the element sodium • represents one sodium atom • Uub=the element ununbium • represents one ununbiumatom 3

  5. SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures Notes • What Is A Compound? • is a substance made up of atoms of two or more different ELEMENTSthat are CHEMICALLY combined via a chemical reaction. • EXAMPLES: Notice the elements that were • chemically bonded together to form these compounds: • NaCl = (Table Salt) • CO2 = (Carbon dioxide) SODIUM AND CHLORINE CARBON AND OXYGEN 4

  6. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Cs • Element (Cesium) • Why?...is a pure substance, consists of one type of atom 5

  7. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • NaCl • Compound (Sodium Chloride) • Why?...has two atoms chemically bonded together 6

  8. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Fe • Element (Iron) • Why?...is a pure substance, consists of one type of atom 5

  9. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • MgCl2 • Compound (Magnesium Chloride) • Why?...has two atoms chemically bonded together 8

  10. SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures Notes • What Is A mixture? • is a combination of two or more substances that are not CHEMICALLY combined • No chemical reaction occurs! • No explosion • No smoke and no precipitate is formed • No heat or light given off • No fizzing or foaming • Unlike a compound, can be fairly easily taken back apart • EXAMPLES: • Soup, Coke or Pepsi, Tea, hamburgers, pizza, etc 9

  11. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Write a capital M it you think it is a mixture • Mg • Element (Magnesium) 10

  12. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Write a capital M it you think it is a mixture • Monster Energy Drink • Mixture 11

  13. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Write a capital M it you think it is a mixture • C6H12O6 • Compound 12

  14. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Write a capital M it you think it is a mixture • Chicken Soup • Mixture 13

  15. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Write a capital M it you think it is a mixture • CO2 • Compound 14

  16. Review Activity • Is this an element or a compound? • Write a capital E it you think it is an element • Write a capital C it you think it is a compound • Write a capital M it you think it is a mixture • Uub • Element 15

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