1. Unit EQ: Atomic History? EQ: What is the atom made of? Warm-up 1) What type of element is Silicon, Zinc, Phosphorus, Barium? 2) How many protons, neutrons and electrons does Bromine 79 and Bromine 80 have? Dr. Pariyadath is in the house!!!

2. Unit EQ: How is Periodic Table arranged? Warm-up 1) What is group 2 called? 2) Group 3-12? 3) What temp. does water boil? freeze? 4) What 4 things did Dalton say? Which incorrect and why? Test Friday

3. Unit EQ:How is periodic table arranged? Subatomic particles? Warm-up 10/7/13 How many protons, neutrons and electrons does Carbon 12 and Carbon 14 have? How many protons, neutrons and electrons does Carbon 12 and Carbon 14 have? Complete problems p116 #21-22 Complete problems p116 #21-22 P117 #23-24 p 122 #35-56 p123 #65 P117 #23-24 p 122 #35-56 p123 #65 All due on Thursday and Quiz Thursday All due on Thursday and Quiz Thursday

4. Atomic Theory Democritus 400BC– Indivisible and indestructible Dalton 1803– 1. Indivisible (wrong because fission – splitting atoms and subatomic particles) 2. Atoms same element identical- (wrong b/c Isotopes – atoms same element different mass) 3.combine in simple whole number ratios 4. React by combining, separating and rearranging Goldstein 1886 - proton Thomson 1897- cathode ray tube- discovered electrons – Plum pudding model

5. Atomic Theory Cont. Rutherford 1911– Gold foil experiment Discovered the nucleus and most of atom is empty space Bohr 1913– electrons occupy fixed orbits around nucleus and can jump up or down by gaining or losing energy Millikan 1916 – found the quantity of charge of electron and its mass 1/1840 of hydrogen atom Chadwick 1932– neutron

6. Current model derived with crazy Math Quantum Mechanical Model (Schrodinger) also electron cloud model - dense central nucleus surrounded by electrons in orbitals- areas of high probability to find electron Heisenberg uncertainty Principle- can not tell the position and velocity of an electron simultaneously

7. The atom Subatomic particles LocationMasschargesymbol protonnucleus 1 AMU positive p + H + neutronnucleus 1 AMU neutraln electron in cloud around nucleus 1/1840 AMU negativee- atomic mass unit

8. Probability of finding blade in blurry region Same idea of finding electrons around nucleus Same idea of finding electrons around nucleus

9. Unit EQ:How is periodic table arranged? Subatomic particles? Warm-up How many protons, neutrons and electrons does Carbon 12 and Carbon 14 have? How many protons, neutrons and electrons does Carbon 12 and Carbon 14 have? Read and take notes on chapter 4 and section 6.1

10. Properties of Metals,Non-metals and metalloids List as many properties of each as you can. List as many properties of each as you can. Metalmetalloid Non-metal What is a Bohr model? What is a Bohr model? ductile malleable shiny good conductors dull brittle poor conductors insulators properties in between semi-conductor

11. Some Notes for you. You’re welcome orbit- fixed path of electron proposed by Bohr atomic orbital – region in space where there is a high probability to find electron quantum of energy- amount of energy to move e- from one energy level to another principal energy level n=1,2,3,4, and so on ductile – drawn into thin wires malleable- hammered into thin sheets

12. Unit EQ: How is Periodic Table arranged? EQ: What is percent abundance/composition? Warm-up 1) What is percent abundance? Individual X100 Total

13. What is the law of conservation of mass? Why is it so important? What is the law of conservation of mass? Why is it so important?

14. Unit EQ: How is Periodic Table arranged? EQ: What is percent abundance/composition? Warm-up 1) What is the atomic mass of isotopes of carbon-12 and carbon 13 if percent abundance is 98.9 and 1.10, respectively. 2) 2 isotopes of bromine have masses of 79 and 80, the atomic mass of bromine is 79.9, what is the percent abundance of each?

15. Unit EQ: How is Periodic Table arranged? EQ: What is percent abundance/composition? Warm-up 1) What is the atomic mass of isotopes of oxygen-16, oxygen -17, oxygen –18. The relative abundances are O-16 (99.759%), O-17 (0.037%), O-18 (0.204%)

16. Unit EQ: How is Periodic Table arranged? EQ: What is percent abundance/composition? Warm-up 10/3/11 1) What is the noble gas notation of Chlorine? 2) What is the noble gas notation of Strontium? -

17. Unit EQ: How is Periodic Table arranged? EQ: What is percent abundance/composition? Warm-up 10/8/13 1) What is the atomic mass of isotopes of sulfur-32, sulfur-33, sulfur –34 and sulfur – 36. The relative abundances are S-32 95.022%, S-33 0.76%, S-34 4.22% and S-36 0.014%. 2) 2 isotopes of chlorine have masses of 35 and 37, the atomic mass of chlorine is 35.453, what is the percent abundance of each?

18. Ticket out the Door 9/26 1) What is 58 o C in Kelvin? 2) How many neutrons does Neptunium-237 have? 3) Germanium (Ge) is what type of element? 4) Element X has 2 isotopes. The first has a mass of 134 at 45% abundance, second has mass of 137 at 55%. What is atomic mass? 5) What is the name of group 17? 5) What is the name of group 17? 6) What element is in group 5 period 6?

19. Ticket out the Door Redo 1) What is 37 o C in Kelvin? 2) How many neutrons does Uranium-235 have? 3) What is the frequency of light with wavelength 6.7 X 10 -7 meters? c= 3.0 X 10 8 m/s 4) What is electron configuration of Arsenic (As)? 5) Draw orbital notation of Oxygen?

20. Video On History of Atom Einstein and Bohr fight over atomic theory Schrodinger and Heisenberg throw down

21. Ticket out the Door Retake 1) What is 45 o C in Kelvin? 2) What is 256 K in Celsius? 3)What element is in group 7 period 3? 4)Arsenic (As) is what type of element? 5)What is the name of group 18?