Classify the following properties as Physical or Chemical:

1. Classify the following properties as Physical or Chemical:

2. Physical or Chemical? • Bright red or orange-red in color • Soluble in water • Decomposes when exposed to light • odorless gas • crystalline solid at room temperature • Supports combustion • Liquid at room temperature • Ductile and malleable

3. Reacts vigorously with metals • Melts at 1500 C • Can be cut with a knife • Density of 0.97g/mL • Normal Boiling point of 80 C • Oxidizes when exposed to air • Specific heat of 3.5 J/g-C

4. Name 3 physical and 3 chemical changes

5. A metal sample has a mass of 45.65 g. The volume of the sample is 16.5 cm3. What is the density of the sample? • If the actual density of the sample is 2.70 g/cm3, what is the % error in the calculated density?

6. A metal sample has a mass of 45.65 g. The volume of the sample is 16.5 cm3. What is the density of the sample? 2.77g/cm3 • If the actual density of the sample is 2.70 g/cm3, what is the % error in the calculated density? 3%

7. Where are the metals located on the periodic table? • Nonmetals? • Metalloids? • Noble Gases? • Where is Hydrogen?

8. Name the element: Alkali metal in period 2 Metalloid in the Al family Chalkogen in period 4 Noble Gas in period 6 Only metal that is a liquid at Room Temp Only nonmetal that is a liquid at Room Temp

9. Name the element: Alkali metal in period 2 Li Metalloid in the Al family B Chalkogen in period 4 Se Noble Gas in period 6 Rn Only metal that is a liquid at Room Temp Hg Only nonmetal that is a liquid at Room Temp Br

10. Draw an atom. Use as much Detail As You can.

11. How would you separate a mixture of sand and salt water into three pure substances?

12. How many protons and neutrons are there in an Iodine -131 nucleus? • A nuclide contains 86 protons and 136 neutrons. What element is it, and what is its mass number?

13. How many protons and neutrons are there in an Iodine -131 nucleus? 53 P 78 n • A nuclide contains 86 protons and 136 neutrons. What element is it, and what is its mass number? Rn-222

14. Write the nuclear equation for the beta decay of Th-234.

15. Write the nuclear equation for the beta decay of Th-234. • Pa- 234 is daughter

16. What are the 3 types of radiation? What are their mass, charge, and penetrating power?

17. Write the symbol for a silver ion that has 46 electrons, and 61 neutrons. • Is it a cation or an anion?

18. Write the symbol for a silver ion that has 46 electrons, and 61 neutrons. 107Ag+ • Is it a cation or an anion? • Cat

19. Calculate the number of moles in a 100 mg sample of tin. Use dimensional analysis. • 8 x 10 -4 moles

20. Do problem 19 on page 90

21. What charge would a calcium ion have?. • What is the electron configuration for this ion? • What is the abbreviated electron configuration for silver?

22. Why are the noble gases nonreactive?

23. See Figure 6 on page 101. • What are the 4 spectral lines in Hydrogen’s emission spectrum? (What are the colors and their wavelengths) • How do these lines form?

24. Parts Per Million • Concentration Units used for very dilute solution • Parts Per Million = • Grams Solute x 1 x 106 • Grams Solution

25. A 1.00 Liter sample of contaminated water contains 420 mg of Nitrate ion. What is the concentration of the nitrate ion in parts per million (ppm)? • Parts Per Million = • Grams Solute x 1 x 106 • Grams Solution

26. A 1.00 Liter sample of contaminated water contains 420 mg of Nitrate ion. What is the concentration of the nitrate ion in parts per million (ppm)? 420 ppm • Parts Per Million = • Grams Solute x 1 x 106 • Grams Solution

27. Draw Lewis dot structures for: CO2, Cl-, O2

28. Write the nuclide notation for the ion having 30 protons, 28 electrons, and 35 neutrons.

29. Summarize the following periodic trends: • Atomic radius • Ionization energy • Metallic character • electronegativity

30. Rb, Sn, or Xe? • Which is smaller? • Which has lower ionization energy? • Which is most electronegative? • Which is most metallic?