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Chapter 5 – Our one and only friend ….

Chapter 5 – Our one and only friend …. PTOE. Section 1 – Arranging the Elements. __________________ = noticed patterns among the properties of elements, arranged them by atomic mass -___________  regular, repeating pattern - Recognized there were missing elements

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Chapter 5 – Our one and only friend ….

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  1. Chapter 5 – Our one and only friend …. PTOE

  2. Section 1 – Arranging the Elements • __________________ = noticed patterns among the properties of elements, arranged them by atomic mass -___________ regular, repeating pattern - Recognized there were missing elements and his predictions of their locations and properties was amazingly accurate - Called the ___________ of the modern PTOE

  3. If Mendeleev is the Father than this person has to be the uncle = ____________________ - Re-arranged the PTOE by _________________ ________________

  4. ____________ = found to the left of zig-zag line - ________ electrons in the outer energy level (shell / cloud) - _________ at room temp., except for 1 (Hg = _________________) - List some properties of these 1) 2) 3)

  5. ____- _________ = right of the zig-zag line - Almost ____________ set of e- in outer energy level - More than ½ are________ at room temp. - List some properties of these 1) 2) 3)

  6. __________________ = are the zig-zag line - aka __________________________ - _______ a complete set of e- in outer level - Properties of ________ metals and nonmetals

  7. __________ ____________ = - Each element is identified using a chemical symbol - Usually one or two letters - Trends of symbols 1)_______ letter 2) first _____ letters 3) _______ and _______ letters 4) letter of word other than English

  8. Ferrum = Latin for Iron, symbol  _____ • Kalium = Latin for Potassium, symbol  _____ • Natrium = Latin for Salt, symbol  _____ • Argentum = Latin for Silver, symbol  _____ • Aurum = Latin for Gold, symbol  _____ • Cuprum = Latin for Copper, symbol  _____ • Plumbum = Latin for Lead, symbol  _____ • Stannum = Latin for Tin, symbol  _____ • Hydrargyros = Greek for silver water (Mercury), symbol  _____

  9. _____________ = horizontal row, properties form a repeating (periodic) pattern - What does this number tell you? • _____________ = vertical column, similar properties - What does this number tell you?

  10. Section 2 – Grouping the Elements • _____________ = gaseous nonmetal - 1 e-, 1 proton & 0 neutrons - __________ element - most _________ element in the universe

  11. __________ ___________ = Group # 1 Li, Na, K … - _________ in outer shell & atomic numbers are odd - All _________ and solids - Very ____________ and form salts-17 http://www.youtube.com/watch?v=Ft4E1eCUItI

  12. ______________-_________ ___________ = Group # 2 Be, Mg, Ca … - All __________ and solids - Atomic #s are _________ - ________ in outer shell - Very __________, but not as much as Group 1 http://www.youtube.com/watch?v=dUbjn3ix3ds (just first 2 minutes of video)

  13. __________________ ___________ = Groups 3 – 12 - ____ or ____ in outer shell, WHY?  Because __________________________________ - Properties vary widely and not as reactive as Group 1 or 2

  14. Groups 13 – 16: Groups w / Metalloids • Group 13 = ______________ group - B, Al, Ga … - ______ in outer shell - Kind of _______________ - All _________ at room temperature - Most common = _______

  15. Group 14 = ________________ group - C, Si, Pb, Sn … -_______ in outer shell - Reactivity ______ - All 3 types of elements - All _________ at room temperature

  16. Group 15 = ________________ group - N, P, As … - _______ in outer shell - Reactivity ________ - All but ___ are solid at room temperature - N makes up ______ of air - P so reactive that it is only found combined with other elements

  17. Group 16 = ________________ grou - O, S, Se … - _______ in outer shell - All 3 kinds of elements - All solid except _____ - O makes up _____ of air

  18. Group 17 & 18: Nonmetals Only • Group 17 = _________________ - F, Cl, Br … - 7 e- in outer shell - Contains all 3 __________ ___ _______ - All _______________ - Combine with Group _____ to form salts - Very _____________ - All end w / - _________ - Some are _________________________

  19. Group 18 = _______________ ________ - He, Ne, Ar … - _______ in outer shell = a full outer shell (He is oddball – for 2 reasons) - All __________ that end in – ______ - All _______________ - Not reactive b/c of filled outer shell = ______________ ** Happy Place **

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