1. UNIT 1 Matter Day 13 September 18, 2017
Periodic Table
Earth and Environmental Science

2. September 18, Science starter: what helps you predict the properties of elements-the period they are in, or the group they are in? why?

3. Sept. 18, 2017 Plan for today: 1. Science starter
2. Lesson- Periodic Table Arrangement
-Notes
-Discussion
-Station work on p.t. groups
3. Work on worksheet packet
4. Wrap-up

4. Essential Question How does atomic structure affect the physical and chemical properties of elements?

5. Homework:
Workbook pages due Friday.
Quiz Friday on the periodic table.

6. Let’s take a few notes about the periodic table
Let’s take a few notes about the periodic table. You need the periodic table vocab/notes sheet.

7. Let’s take a few notes on our vocab sheets
Valence Electrons:
D -The electrons in the outermost orbital of an atom.
A.D. Determine how reactive an element is.

8. Energy Levels:
Def. The levels or shells where electrons circle the nucleus of the atom.
A.D. first level holds up to 2 electrons.
A.D. Every other level holds up to 8 electrons
A.D. Each level must be completely filled before starting a new level.
A.D. Also called orbitals, energy shells, electron shells

9. Vocabulary continued
Periods: The horizontal rows on the Periodic Table.
A.D. Tells the number of energy levels (orbitals) each element on the row has
A.D. There are only 7 periods so no more than 7 orbitals for any atom 1 2 3 4 5 6 7

10. D - The vertical columns on the Periodic Table.
Groups/Families:
D - The vertical columns on the Periodic Table.
A.D. Tells the number of valence electrons (electrons in the outermost energy level of every atom) each element has.
Ex. Group 1 elements have
1 valence electron; Group 2
Elements have 2 valence
electrons.
1 2

11. PERIODIC TABLE STATIONS
Let’s investigate P.T. groups and write down their properties on the “Periodic table Families” chart. Don’t leave off any details. Shade each group carefully ON YOUR PERIODIC TABLE AS YOU TAKE NOTES. FILL IN THE COLOR KEY AT THE TOP. ***Don’t shade hydrogen the same color as the other elements in its group.

12. We will focus on the metals first. Back to yellow notes.

13. Properties of the Three Major Classes of Elements
31. Metals
1.Shiny luster
2.Ductile
3.Good conductors of electricity and heat (thermal energy) 4.Malleable
room temperature (except Mercury which is a liquid)
6.Melt & boil at high temperature
7.High density
Properties of the Three Major Classes of Elements
Mercury

14. Smart lesson

15. Group/Family Names & Characteristics
Alkali Metals
Alkaline-Earth Metals
Boron
Carbon
Nitrogen
Oxygen
Halogen
Noble Gases
*Group 1A
*Most reactive group of all
*Soft
*1 valence electron
*never uncom-bined in nature
*form salts with Gp. 7A
*Group 2A
*Highly reactive
*2 val. Elect.
*Group 3A
*(Al) is the most common metal in Earth’s crust;
*reac-tive
*Group 4A
*Group 5A
*reactive
*Group 6A
*Group 7A
*7 val.el.
*poor conduct.
*most reactive nonme-tals
*Never uncom-bined in nature
*form salts with Gp. 1A
*Group 8A
*8 val. el.
*full valence energy level (full outer shell)
*non-reactive - inert
*non-metals
*all gases

16. Transition Elements(Metals)
All metals
Coinage metals; common metals
Mostly shiny, ductile, malleable, good conductors, solid (except Mercury)
Some are more reactive than others
Ex. Iron, copper, gold, nickel, silver

17. Wrap-up:
Any questions?