1. + Minerals September 6 - September 13 Chapter 2 Quiz on Monday

2. + Announcements Your Element Chart is due today Your article reports are due tomorrow Your vocabulary is due Friday You will have a quiz Monday

3. + 2. Isotopes and Bonding Complete the following chart and then answer the questions below: SymbolAtomic Mass # Neutrons # Protons Element Name C-1212Carbon C-1414Carbon 7Nitrogen 8 O-17 168 1.Is it possible for two different elements to have the same mass? 2.Is it possible for the same element to have two different masses?

4. + 2. Isotopes and Bonding __________of elements will have different ________ masses Which means they have the same number of ________ Different numbers of ________ Many isotopes are ________ and give off energy and particles

5. + 2. Isotopes and Bonding Density is a distinguishing characteristic of different types of matter (helps us tell them apart) Density = ________ ÷ ________ for any compound or mineral D = m ÷ v

6. + 2. Isotopes and Bonding Use the periodic table to solve for these problems: 1. What is the density of the element Sulfur if there are 2 mL of it?

7. + 2. Isotopes and Bonding Use the periodic table to solve for these problems: 2. What is the density of Vanadium if there are 5 mL of it?

8. + 2. Isotopes and Bonding Use the periodic table to solve for these problems: 3. What is the volume of Neon if the density is 10 g/mL?

9. + 2. Isotopes and Bonding Why do atoms bond? ________ ________ consist of two or more elements that are chemically combined (________ ) in ________ proportions ________ are the simplest structural units of compounds

10. + 2. Isotopes and Bonding ________________ are the electrons that are in the highest ________________of the electron cloud The energy levels are “full” when they have the following numbers of valence electrons Energy level 1 = 2 (applies to ________ and ________ only) Energy level 2 and up = 8 (pretty much ________________) If the energy level is not “full” an atom will want to ________electrons to make it happen.

11. + 2. Isotopes and Bonding As a result of gaining, sharing, or losing electrons- atoms will ________ together which makes them more ________ Whether something gains, loses, or shares will depend on the ________ It just so happens that you can also figure out how an atom will bond based on whether it’s a ________

12. + 2. Isotopes and Bonding Metals Elements that are on the ________ hand side of the periodic table are ________ ________ of the periodic table is metals These are colored ________ on the table in the back of your book Tend to ________ electrons Nonmetals Elements that are on the ________ hand side of the periodic table are ________ ________ of elements are nonmetals, but they are very common elements These are colored ________ on the table in the back of your book Tend to ________ electrons

13. + 2. Isotopes and Bonding 1. Na 2. Sr 3. O 4. Cl 5. Hf 6. As 7. P 8. Xe 9. Fe 10. He 11. Li 12. Ni Identify the following as metals or non-metals

14. + 2. Isotopes and Bonding Ionic Bonds Electrons have a ________ charge Protons have a ________ charge When electrons are lost or gained, an ________ is formed Ions are ________ When a ________ and a ________ combine, an ________ is formed Form between ________

15. + 2. Isotopes and Bonding Metallic Bonds Metals lose electrons ________ They tend to share electrons ________________ - like a ________ of electrons being passed around When ________ bond together it is a ________ bond

16. + 2. Isotopes and Bonds Covalent Bonds Non-metals like to ________ electrons 2 or more non-metals will ________ electrons because they both want the electron ______ bonds form between _______

17. + 2. Isotopes and Bonding 1. NaCl 2. KCl 3. H 2 O 4. AlZn 5. HCl 6. CO 2 7. MgO 8. Cu (many atoms of this) Figure out the bond type by 1 st : determining whether each element is a metal or non-metal 2 nd : use that information to tell you the bond type