The Periodic Table BY: BRIANNA SHIELDS DO NOW • 1. What element has the chemical symbol K? • 2. How many neutrons does Hydrogen have? • 3. How many electrons are in the outer orbit level of aluminum? (need to make a Bohr model) GOAL • To construct Bohr models • To use the periodic table and become familiar with its elements The Periodic Table- Video What is the name for the element group in the first column of the periodic table? What is the name for the element group in the last column of the periodic table? The Periodic Table- Video Trends in the Periodic Table • ACS Periodic Table • Chemistry: WebElements Periodic Table • A Periodic Table of the Elements at Los Alamo... • Chemical Elements.com - An Interactive Period... The Periodic Table You should be coloring in and labeling your periodic table, as we take notes Periodic Table Trends • Periodic • 1. Atomic number increases left to Table Trends right, top to bottom Periodic Table Trends • Periodic • 2. Groups / Families = Vertical Table Columns Trends • Gp 1= Alkali metals • Gp 2= Alkaline earth metals • Gp 17= halogens • Gp 18= noble gases Group 1= Alkali Metals Group 2= Alkaline Earth Metals Gp 17= Halogens Gp 18= Noble Gases Periodic Table Trends • Periodic • 3. Periods = horizontal rows Table Trends Periodic Table Trends • Periodic • 4. Metalloids= along stair step line Table Trends (metal and non-metal characteristics) Periodic Table Trends • Periodic • 5. Metals= everything to left of stair Table Trends step line Periodic Table Trends • Periodic • 6. Non-metals = everything to right Table Trends of stair step line (most common) Periodic Table Trends • Periodic • 7. Transition elements- elements in Table Trends gps 3-12 with unusual properties Describe the locations of the elements • Ex: Neon is a non-metal located in period 2, gp • • • • • • 18 (noble gases) Sodium A metal located in period 3, gp 1, the Nickel A transition metal located in period 4, gp 10 Fluorine A non-metal in period 2, grp 17 (halogens) Describe the locations of the elements • Ex: Neon is a non-metal located in period • • • • 2, gp 18 (noble gases) Aluminum A metalloid in period 3, group 13 Hydrogen A non-metal located in period 1, gp 1 How many p, e and n? Atomic Number Chemical Symbol 19 K 39.10 Atomic Mass How many p, e and n? 29 Cu 63.55 Review: Bohr Models • Make a Bohr Model of Lithium KEY #p= 3 #n= 4 #e= 3 Lithium 3P 4N Review: Bohr Models • Make a Bohr Model of Silicon KEY #p= 14 #n= 14 #e= 14 Silicon 14P 14N Do you know your elements yet?? • Be •I • Sn • Ag •C Do you know your elements yet?? • He •U • Ba • Mg •K Do you know your elements yet?? • Ne •P • Cl • Pt • Au Do you know your elements yet?? • Hg • Rn • Co • Mn • Cu Do you know your elements yet?? • As • Zn •F • Na • Si •P Element Lab and Practice • You will have the remainder of the period to work on your lab homework Quiz • Atom and Element Quiz