September 25, 2013 -When the bell rings voices

September 25, 2013 -When the bell rings voices are at zero, working on the DO NOW ( All electronics away!!) -Pick up daily handouts (There is an extra at the front of the room on a stool get that one too!) -Pick up turned back docs -Turn in any LATE reports (M&M, Beanium, Nuclear Energy, Chemistry in a Bag) Vocab Corrections -DO NOT TURN ANYTHING IN UNLESS STATED ABOVE -HAVE OUT YOUR REFERENCE TABLE

-Start on the Do Now in your Do Now form DO NOW 9/25/13 Work on the Magic Squares handout you picked up, in your form write magic squares handout Do Now Review DO NOW 9/25/13 Magic Squares handout Homework

WANTED! Periodic Table Project Due 9/30 Vision Learning Chemical Bonding Module **Quiz must be complete by the time you come to class FRIDAY 9/27** Graded*** Upcoming Dates 9/25/2013 Empirical Formula QUIZ 9/27/2013 Bohr Model Quiz

9/27/2013 Lab Class (Dress appropriately, bring composition notebook, safety contract) 9/30/2013 Electron / Periodic Properties Test 9/30/2013 Periodic Table Wanted Poster Due Tutoring Tuesday 2:30-3:30 in room 529

NO TUTORING THURSDAY Test retakes and make ups ONLY Remind 101 1st and 4th text @murfchemhn to (336)554-7294 3rd text @murfchem to (336)554-7294 Valence

Electron s: ELECTRONS AVAILABLE FOR BONDING Definition Valence electrons are electrons in the outmost shell (energy

level). They are the electrons available for bonding. Group Group 11 (alkali (alkali metals) metals) have have 11 valence valence electron

electron Group Group 22 (alkaline (alkaline earth earth metals) metals) have have 22 valence valence electrons

electrons Group Group 13 13 elements elements have have 33 valence valence electrons electrons

Group Group 14 14 elements elements have have 44 valence valence electrons electrons

Group Group 15 15 elements elements have have 55 valence valence electrons electrons Group

Group 16 16 elements elements have have 66 valence valence electrons electrons Group Group 17

17 (halogens) (halogens) have have 77 valence valence electrons electrons Group Group 18 18 (Noble

(Noble gases) gases) have have 88 valence valence electrons, electrons, except except helium, helium, which which has

has only only 22 Transition Transition metals metals (d (d block) block) have have 11 or

or 22 valence valence electrons electrons Lanthanides Lanthanides and and actinides actinides (f (f block)

block) have have 11 or or 22 valence valence electrons electrons Dot Notations An atoms valence electrons can be represented by Lewis dot notations.

1 valence e- 2 valence e- 3 valence e- 4 valence e- 5 valence e-

6 valence e- 7 valence e- 8 valence e- X X X

X X X X X Dot Notations Period 2 Lewis dot notations for the valence electrons

of the elements of Period 2. lithium beryllium boron carbon nitrogen

oxygen fluorine neon Li N

Be O B F C Ne Lewis Dot Practice

Lewis Dot handout Poll Anywhere Of the following elements which would have the largest radius? A. Lithium (Li) atomic #3 B. Nitrogen (N) atomic #7 C. Neon (Ne) atomic #10 D. Boron (B) atomic #5

Poll Anywhere As one moves from down ( ) a group on the periodic table, the electronegativity of the elements encountered tends to: A. stay the same B. increase C. decrease Poll Anywhere The elements with the smallest atomic radii are

found in the: A. upper right-hand corner of the periodic table B. upper left-hand corner of the periodic table C. lower left-hand corner of the periodic table D. lower right-hand corner of the periodic table Poll Anywhere Cations have a ______________ charge and are ______________ than the atoms from which they formed.

A. negative/smaller B. positive/larger C. positive/smaller D. negative/larger Poll Anywhere A vertical column of elements on the periodic table can also be referred to as A. Family B. Group

C. period D. series Poll Anywhere Generally speaking the group of elements with the highest first ionization energy is A. Group 17 B. Group 1 C. Group 16 D. Group 18

Poll Anywhere Elements with the smallest atomic radii are found in the : A. Lower left-hand corner of the Periodic table B. Lower right-hand corner of the PT C. Upper left-hand corner of the PT D. Upper right-hand corner of the PT Poll Anywhere

The energy required to remove an electron from an atom is known as A. Radioactivity B. Electron Affinity C. Ionization energy D. Electronegativity Hands up Pair Up! Periodic Trends handout

I have, Who has? Review!