Monday October 3, 2011 Warm Up Classwork: Which of the following describes how a compound can be broken down a. Through physical changes b. through chemical changes c. By crushing it d. Through physical and chemical changes #55 & #56 Textbook pg 108, 1-4, 8-13, 15-16, 19, 23 Homework Check Homework: Complete #55 & #56 STUDY for Test Tomorrow #55 Textbook Practice & #56 Textbook Practice Continued Pg 108 in Textbook Complete problems: 1-4, 813, 15-16, 19, & 23 Quanswers always! Tuesday October 4, 2011 Warm Up Fill in TOC Turn in Albert if you have made corrections to homeworks Left Side Right Side 45 9/23 Test: changes in matter 46 9/23 Test Changes in matter 47 9/26 Types of Mixtures Organizer 48 9/26 Content Writing Assignment 49 9/27 M&M Observations 50 9/27 Solutions Practice 51 9/28 Separating Mixtures Graphic Org 52 9/28 Separate the Mixture 53 9/29 Classify Matter with Legos 54 9/29 Classify Matter with Legos 55 10/3 Textbook Practice 56 10/3 Textbook Practice Continued 57 10/4 Test: Classify Matter 58 10/4 Test Classify MAtter 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 The Element Song …….. 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 • How many protons does Cobalt 7 bc that is the atomic number have? • How many electrons does Cobalt 7 bc that is the atomic number have? • What is the atomic mass of Cobalt 14 amu • How many neutrons does Cobalt 7 neutrons have? 14 -7 =7 • How many protons does Cobalt 27 have? • How many electrons does Cobalt 27 have? • What is the atomic mass of Cobalt 58.93 amu • How many neutrons does Cobalt have? 58.93-27 = 32 32 neutrons 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: Element Sym bol Atomic number Atomic Mass/ Mass Number Magnesium Mg 12 24 Carbon C 6 12 Protons Neutrons Electrons Isotope, Ion or Neutral 12 24-12=12 12 neutral 6 12-6=6 7 Ion # 60 Atomic Math Challenge Use the information we discussed in our notes about each element to find the missing information Thursday October 6, 2011 Warm Up Classwork: #61 Periodic Table Notes #62 Getting to Know the Periodic Table Homework: Complete #62 • 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, nonmetals • • • • 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 • The metals in the middle of the table are called transition metals because 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 • • • • • 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 • Metalloids – these elements border the zig-zag line. • Color them a different color • Have properties of both metals and non-metals Friday October 7, 2011 Warm Up Classwork: #63 Doom Patrol Comic Follow up Questions #63 Family and Group Notes Homework: Periodic Law – repeating