The Periodic Table

1. The Periodic Table

2. . Chemistry Learning outcome: 2) I can use the periodic table to Find electrons, protons, neutrons Find metals & non-metals Find alkali, alkali earth metals, halogens and noble gas families Know the relative reactivity of each family Draw an arrow to show how the reactivity of metals increase Draw an arrow to show how the reactivity of non-metals increase Find the seven diatomic elements

3. 2a) Find the number of electrons, protons, and neutrons for an element • # of electrons (neutral atom) = atomic number • # of protons = atomic number • # of neutrons = atomic mass – atomic number

4. Example: Bromine (Br) • # of electrons = 35 • # of protons = 35 • # of neutrons = 80 – 35 = 45 Try: Krypton, Kr

5. Looking at the whole thing

6. Rows versus Columns

7. 2 b) Locating metals and non-metals

8. 2 c&d) Families and Groups (columns): Alkali Metals: highly reactive (sodium)

9. 2 c&d) Families and Groups (columns): Alkaline Earth Metals: moderately reactive

10. 2 c&d) Families and Groups (columns): Halogens: highly reactive

11. 2 c&d) Families and Groups (columns): Noble Gases: not very reactive

12. Families and Groups (columns): Transition Metals: not very reactive

13. Summary of reactivity of the families Alkali metals: highly reactive (sodium) especially in water Alkaline Earth Metals: moderately reactive (calcium) Halogens: highly reactive (chlorine) Noble gases: stable (helium)

14. 2 e&f) Reactivity in General

15. 2 g) 7 Diatomic ElementsH, N, O, F, Cl, Br, I The seven starts with N = element number 7

16. Assignments Chemistry version of the game BINGO