1. Entry Task: October 29 th Monday Entry Task Question: What element has 4 valence electrons, a metalloid and has 3 energy levels? You have 5 minutes!

2. Agenda: Sign off on Alien periodic table Discuss Alien periodic table- QUICKLY Self Check on Periodic Table HW: Ch. 6 section 3 reading notes

3. The atomic mass of the elements increases as you move left to right and top to bottom on the Per. Table Wo has greatest atomic mass, Bo the least Bo, Wo, J, L Noble gases are in group 18 They are noble gases Bo, Wo, J, L What did you learn ? Clue Alien Element

4. Wo Bo L J

5. The atomic mass (lightness or heaviness) increases as you move left to right and down the periodic table Pf is the lightest element, El is the heaviest Pf, El What did you learn ? Clue Alien Element Reactivity decreases as you move from left to right on the Per. Table They are the most reactive group X, By, Ch, Q

6. Wo Bo L J Pf El Ch X By Q

7. What did you learn ? Clue Alien Element -Atoms can gain or lose electrons -The # of electrons an atom will gain, lose or share is determined by the group that it is in. Non-metals who typically gain or share one electron A, V, Kt Metalloids are located between the metals and the non-metals along the zigzag line. They are metalloids E, Hi, T, Ss

8. The number of protons is equal to the atomic # T has more protons than Hi T What did you learn ? Clue Alien Element

9. Wo Bo L J Pf El Ch X By QV A Kt E Ss T HiYz

10. What did you learn ? Clue Alien Element Table salt is made of NaCl Kt and By make table salt Kt and By The number of protons is equal to the atomic number on the periodic table D has 4 protons D

11. Wo Bo L J Pf El Ch X By QV A Kt E Ss T HiYz D

12. Periods have the same energy levels Group 14 same period as A, R and Do Fx What did you learn ? Clue Alien Element The further to the right you move on the periodic table, the less reactive the element is R is less reactive than Do R, Do

13. Wo Bo L J Pf El Ch X By QV A Kt E Ss T HiYz DFx RDo

14. Same spot as oxygen Is the lightest in Group 16 Nu What did you learn ? Clue Alien Element The number of electrons = the atomic number An has 49 electrons An

15. Atoms on the left side of the periodic table tend to lose electrons Group 2 Z, Pi What did you learn ? Clue Alien Element

16. As you move across the periodic table from left to right, the number of electrons increases in each period Group 15 G has less electrons than M M, G, Ss What did you learn ? Clue Alien Element Elements on the right side of the periodic table gain electrons (except for the noble gases) They all gain 2 electrons Up, Oz, Nu

17. Wo Bo L J Pf El Ch X By QV A Kt E Ss T HiYz DFx Z G M Nu Up Oz R Pi Do An

19. 1. What group # are the halogens? GROUP 17 2. What is the name of the group 2? ALKALI EARTH METAL

20. 3. What group # has the coinage elements- Silver, Gold and Copper) 11 4. How many valence electrons are in the alkali group? ONE

21. 5. Why are groups “grouped” together? SAME # of VALENCE ELECTRONS Have the same properties. 6. What groups are the transitional elements? Groups 3-12

22. 7. What 2 properties does the noble gas share? Gases, nonreactive, nonconductive 8.Explain why they have these properties? The valence orbit is filled with electron

23. 9. What determines the chemical and physical properties of elements? The NUMBER of VALENCE ELECTRONS.

24. 10. What element is in the period 5, group 7? Technetium- Tc 11. What element is in the period 6, group 2? Barium-Ba

25. 12. Period refer to what part of an atom? # of orbits or energy levels 13. Groups refer to what part of the atom? # of valence electrons

26. 14. What element is in the period 7, group 9? Meitnerium-Mt 15. What element is in the period 4, group 14? Germanium-Ge

27. Provide the period and group for the following elements Calcium p_____, g_____Silverp _____,g_____ Radon p_____, g_____ Carbon p_____, g_____ Potassium p_____, g_____ Yttrium p_____, g_____ Aluminum p_____, g_____ Krypton p_____, g_____ 4 2 6 18 4 1 3 13 5 11 2 14 5 3 4 18

28. Group # (0.5 pts) Period # (0.5 pts) Metal/Nonmetal, metalloid (1 pts) # of valence electrons (0.5 pts) # of energy level (0.5 pts) Properties (1 pts/answer) Max 2 points 1. 2. 3. 182 Non metal 8 2 Unreactive, gas, stable, keeps ve 14 metal 1 4 reactive, solid, shiny, loses ve 176 nonmetal 7 6 Gases noncoductive dull

29. Group # (0.5 pts) Period # (0.5 pts) Metal/Nonmetal, metalloid (1 pts) # of valence electrons (0.5 pts) # of energy level (0.5 pts) Properties (1 pts/answer) Worth 2 points 4. 5. 6. 143 metalloid 4 3 Both metal and non metal properties 55 metal ? 5 Conductive, shiny, solid 2 6 metal 2 6 Conductive, shiny, solid, 5

30. Ch. 6 pg. 163-169 – The Periodic Table sec.3