Today in I.S.… Fact of the Day Week #1 Quarter 2 (10/16-10/17) Pick Up: Warm up sheet Periodic table?? Find that element! Bill Nye Video ?’s I.S. Learning Goal: I can describe the features and components of the atom. I can apply models to features of an atom Warm Up Question:What are the parts that make up an atom and where are they located? Fact of the Day The noble gas Xenon lasers can cut through materials that are so tough even diamond tipped blades will not cut. To Do Today: New seating chart Complete coloring of periodic table Bill Nye video with handout on Atoms Find that Element! handout Periodic Table of Elements Review handout Homework: New Notebook Friday 10/18

Families on the Periodic Table Elements on the periodic table can be grouped into families bases on their chemical properties. Each family has a specific name to differentiate it from the other families in the periodic table. Elements in each family react differently with other elements.

ALKALI METALS Group 1 Hydrogen is not a member, it is a non-metal All are metals and solid at room temp 1 Valence Electron Soft and silvery, shiny Very reactive, esp. with water Conduct electricity Image: http://www.learner.org/interactives/periodic/groups2.html

ALKALINE EARTH METALS Group 2 Metals Be,Mg,Ca,Sr,Ba,Ra Solids at room temp 2 electrons in the outer shell White, silvery, and malleable Reactive, but less than Alkali metals Conduct electricity

TRANSITION METALS Metals Almost all are solids at room temp (Hg) Good conductors of heat and electricity. 1 or 2 Valence Electrons Less Reactive than Alkali and Alkaline Earth Can bond with many elements in a variety of shapes.

BORON FAMILY Group 3 3 (valence)electrons in the outer shell Most are metals Boron is a metalloid all other elements are metal. Reactive Solid at room temp

CARBON FAMILY Group 4 4 (valence) electrons in the outer shell Contains 3 metals (Fl, Pb, Sn), 2 metalloids(Si, Ge), and 1 non-metal Carbon (C) Reactivity varies Solids at room temp

NITROGEN FAMILY Group 5 5 electrons in the outer shell Can share electrons to form compounds Contains 2 metals(Bi,Sb) , 2 metalloids(As,’Pb), and 2 non- metals(P,N) Reactivity Varies Nitrogen is the only gas at room temp, rest are solids

OXYGEN FAMILY Group 6 6 electrons in the outer shell Contains 2 metals(Po,Lv), 1 metalloid(Te), and 3 non-metals(O, S, Se) Reactive Oxygen is a gas, the rest are solids at room temp

Halogens Group 7 7 electrons in the outer shell Non-metals, Uus is unknown Very reactive - are often bonded with Group 1 Alkali Metals Has 2 gases(F, Cl), 1 liquid (Br), and 2 solids

Noble Gases Group 8 Exist as gases Non-metals 8 electrons in the outer shell = Full Helium (He) has only 2 electrons in the outer shell = Full Not reactive with other elements

Rare Earth Metals Some are Radioactive The rare earths are silver, silvery- white, or gray metals. Conduct electricity

Bill Nye: Atoms - Video with Questions

You may watch more videos about the elements at: http://www.periodicvideos.com/

Today in I.S.… Fact of the Day To Do Today: Check for notebook Week #1 Quarter 2 (10/18) I.S. Learning Goal: I can describe the features and components of the atom. I can apply models to features of an atom Fact of the Day Carbon is most commonly obtained in coal deposits. Diamonds are found in volcanic rock, called kimberlite, located in South Africa, Arkansas, and elsewhere. Name is Latin for charcoal. Warm Up Question: Why is carbon important in the study of organic chemistry? To Do Today: Check for notebook Discuss Lewis Dot structure and Bohr Model of atomic diagrams Homework: notebook cover Monday Notebook set up Monday Cheat song: http://www.bing.com/videos/search?q=cheet+song&qs=n&form=QBVR&pq=cheet+song&sc=8-10&sp=-1&sk=#view=detail&mid=0F0601B0607AC390F2280F0601B0607AC390F228

Periods Each row is called a “period” The elements in each period have the same number of shells 1st Period = 1 Shell 2nd Period = 2 Shells 3rd Period = 3 Shells 4th Period = 4 Shells Periodic table of elements video http://www.brainpop.com/science/matterandchemistry/periodictableofelements/

Groups Group 8 = 8 electrons Group 1 = 1 electron Except for He, it has 2 electrons Group 1 = 1 electron Group 2 = 2 electrons Each column is called a “group” 3 4 5 6 7 Each element in a group has the same number of electrons in their outer orbital, also known as “shells”. The electrons in the outer shell are called “valence electrons” www.chem4kids.com

Transition Metals Transition Metals have slightly different rules for shells and valence electrons. www.chem4kids.com

Lewis Structures Put onto back of “Find that Element!” handout Find your element on the periodic table. Determine the number of valence electrons. This is how many electrons you will draw. 20

Lewis Structures Find out which group (column) your element is in. This will tell you the number of valence electrons your element has. You will only draw the valence electrons. 21 www.chem4kids.com

Groups - Review Except for He, it has 2 electrons Each column is called a “group” Each element in a group has the same number of electrons in their outer orbital, also known as “shells”. The electrons in the outer shell are called “valence electrons” 22 www.chem4kids.com

Order of How to Draw Lewis Dot Structures

Lewis Structures Write the element symbol. Carbon is in the 4th group, so it has 4 valence electrons. Starting at the right, draw 4 electrons, or dots, counter-clockwise around the element symbol. 24

Lewis Structures Check your work. Using your periodic table, check that Carbon is in the 4th group. You should have 4 total electrons, or dots, drawn in for Carbon. 25

Lewis Structures H P Ca Ar Cl Al On back your worksheet “Its Elemental”, try these elements on your own: H P Ca Ar Cl Al 26

Lewis Structures H P Ca Ar Cl Al On your worksheet, try these elements on your own: H P Ca Ar Cl Al 27

Lewis Structures On your worksheet, try these elements on your own: H P Ca Ar Cl Al 28

Lewis Structures On your worksheet, try these elements on your own: H P Ca Ar Cl Al 29

Lewis Structures H P Ca Ar Cl Al On your worksheet, try these elements on your own: H P Ca Ar Cl Al 30

Lewis Structures On your worksheet, try these elements on your own: H P Ca Ar Cl Al 31

Lewis Structures H P Ca Ar Cl Al On your worksheet, try these elements on your own: H P Ca Ar Cl Al 32