DO NOW!!! https://www.youtube.com/watch?v=VgVQ KCcfwnU Periodic Table Song

Unit 3 Lesson 2

Elements Once believed - fire, wind, earth, & water – made up all matter - WRONG 3

1860s – scientists considered there to be around 60 basic elements Many elements - similar properties Classification system was needed

Periodic Table Henry Moseley - reorganized Mendeleev’s periodic table - order of increasing number of protons - atomic number. 6

Periodic Table Patterns Zigzag line - separates metals from nonmetals. Lanthanides & Actinides – Added to bottom in order to shorten the table

Periodic Table Patterns Zigzag line - separates metals from nonmetals.

Periodic Table License Plate Project

HW Complete the Periodic Table License Project

DO NOW – Adopt an Element http://www.rsc.org/periodic-table http://www.pbslearningmedia.org/asset/phy03_int_ptable/ http://www.periodictable.com/ http://www.sheppardsoftware.com/periodictable_L.html Research on GOOGLE browser – Interactive Periodic Table – to find more information Grab a Chromebook: Go to one website listed above! Research an element your interested in. Fill out the Adopt an Element Worksheet Ca Calcium, Ti Titanium, U Uranium, C Carbon, O Oxygen, Ne Neon, H Hydrogen, Cl Chlorine, Na Sodium, Al Aluminum, Cu Copper, Mg, Magnesium

Periodic Table Game http://www.sheppardsoftware.com/periodi ctable_0_click_common.html Complete the Periodic Table Gossip Worksheet

HW Review Pages 172 – 173 and answer questions #8-9

DO NOW!!! Using your Periodic Table complete the Do Now Worksheet

Periodic Table Information Each square contains: # of Protons & Neutrons in Nucleus of 1 atom # of Protons in Nucleus of 1 atom 16

Chemical Symbol Abbreviation for the element’s name. First letter - always capitalized Any other letter - lowercase. Element name - written under chemical symbol. 17

Atomic Mass – Protons + Neutrons All atoms of element - same # of protons / # of neutrons can vary (Isotopes) Average atomic mass - weighted average of the masses of all the naturally occurring isotopes of that element. Atomic mass units - (amu). 18

Metals, Non-metals, Metalloids Zigzag Line- divides 3 major categories of elements Metals (left of zigzag) – shiny, conduct heat and electricity well Nonmetals (right of the zigzag) – dull, brittle, & poor conductors of heat and electricity Metalloids (border zigzag line) have properties of both metals and nonmetals 19

Group/family – atoms have similar # of valence electrons Valence electrons - participate in chemical bonding.

Periods – Atom Size Elements in middle of a period - most dense. Left to right within a period - atomic number of each element increases by 1.

HW Complete the Lesson Review on page 179.

Understanding Periodic Table Squares Lab

Periodic Table competition. Break into 4 groups Using the poster as a reference Create the periodic table with your group.

Element Project

Create your own 3D mobile model of an Element Sodium = 12 Neutrons, 11 Protons, 11 Electrons

Make a Mobile Model of an Element Read the Worksheet together as a class! Pick a partner. Pick one of the elements. Research the elements protons, neutrons, and electron numbers along with the electron orbital configuration. Create your elements mobile.