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Monday October 3, 2011

Monday October 3, 2011. Warm Up Which of the following describes how a compound can be broken down Through physical changes through chemical changes By crushing it Through physical and chemical changes. Classwork: #55 & #56 Textbook pg 108, 1-4, 8-13, 15-16, 19, 23 Homework Check

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Monday October 3, 2011

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  1. Monday October 3, 2011 Warm Up Which of the following describes how a compound can be broken down Through physical changes through chemical changes By crushing it Through physical and chemical changes Classwork: #55 & #56 Textbook pg 108, 1-4, 8-13, 15-16, 19, 23 Homework Check Homework: Complete #55 & #56 STUDY for Test Tomorrow

  2. #55 Textbook Practice & #56 Textbook Practice Continued Pg 108 in Textbook Complete problems: 1-4, 8-13, 15-16, 19, & 23 Quanswers always!

  3. Tuesday October 4, 2011 Warm Up Fill in TOC Turn in Albert if you have made corrections to homeworks

  4. Wednesday October 5, 2011 Warm Up What is the density of an object with a mass of 10.5 g and a volume of 5mL? Classwork: Element Song #59 Element Box Notes #60 Atomic Math Challenge Homework: Complete # 60

  5. The Element Song ……..

  6. Atomic Number – The number of protons in the nucleus *the number of electrons if the atom is NEUTRALly charged Element Symbol – the symbol used to identify the element, The 1st letter is always capitalized and the 2nd is lower case Element name Atomic Mass- the mass of 1 atom of this particular element *Atomic Mass = Protons + Neutrons

  7. How many protons does Cobalt have? • How many electrons does Cobalt have? • What is the atomic mass of Cobalt • How many neutrons does Cobalt have? • How many protons does Cobalt have? • How many electrons does Cobalt have? • What is the atomic mass of Cobalt • How many neutrons does Cobalt have? 7 bc that is the atomic number 7 bc that is the atomic number 14 amu 14 -7 =7 7 neutrons 27 27 58.93 amu 58.93-27 = 32 32 neutrons

  8. Usually the atomic number is the number of protons and electrons. If the number of electrons is not the same as the number of protons it is called an ION Fill in the missing information: 12 24-12=12 12 neutral 12 Ion 12-6=6 6 12

  9. # 60 Atomic Math Challenge Use the information we discussed in our notes about each element to find the missing information

  10. Thursday October 6, 2011 Warm Up Classwork: #61 Periodic Table Notes #62 Getting to Know the Periodic Table Homework: Complete #62

  11. The Periodic Table is arranged by increasing atomic number. • As you move across the periodic table the outer shell of electrons becomes more full. • All atoms want to have a full outer shell of 8 electrons • There are 3 main categories of elements: metals, metalloids, non-metals

  12. Most of the elements in the Periodic Table are metals • They are to the left of the zig-zag line • Color the Metals one color – Notice Hydrogen is not a metal • Properties of metals are: solid at room temperature, shiny, good conductors of electricity, malleable, and good conductors of thermal energy • Since they are on the left side of the table, they usually have low atomic numbers and are very reactive with other elements

  13. The metals in the middle of the table are called transition metalsbecause they exhibit different patterns than other metals • Draw a box around the transition metals • Notice there are several metals to the left of the Zig-Zag line that are not transition metals

  14. The elements to the right of the Zig-Zag line are called non-metals. • Color them a different color • Atoms on the far right of the Periodic table have almost a complete outer shell • Most non-metals are gas at room temperature • Non-metals have properties that are opposite of metals: they are not conductive, not malleable, not shiny…. • Ex: Carbon is in lead and is brittle • Noble Gases – are a special type of non-metal. They have complete outer shells and do not react often with other elements • These gasses can become plasma • Label the Noble Gasses

  15. Metalloids – these elements border the zig-zag line. • Color them a different color • Have properties of both metals and non-metals

  16. Friday October 7, 2011 Warm Up Classwork: #63 Doom Patrol Comic Follow up Questions #63 Family and Group Notes Homework:

  17. Periodic Law – repeating

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