September 23,2013

1. Agenda: • Fill in objective and homework in agenda • Baby Element Project Info • Vocab • Question of the Day • Set up your foldable • Periodic Table Notes • Don’t Forget September 23,2013 Obj: Reading the Periodic Table HOMEWORK: Start researching your baby element

2. Vocabulary • Family: A column of elements in the periodic table • Transuranium Element: Any element having more than 92 protons, the atomic number of uranium. • Radioactive Element: an unstable element whose nucleus breaks down and gives off particles, radiation, and energy. • Isotope: atoms of the same element that have different numbers of neutrons. For example, boron-10 and boron-11.

3. Nature of Science N.8.B.2 http://www.rpdp.net/sciencetips_v3/N8B2.htm Which statement best describes the process of science? • Scientists are objective and free of prejudice. • Scientists generally discover new ideas without the help of others. • Scientific ideas evolve or change over time. • New ideas in science generally result from planned experiments.

4. Periodic Table • What do you already know about the periodic table of elements? • Take out one piece of paper and answer the question. • Pass the paper to the person on the right. • Add new answers to the paper you receive.

5. Setting Up Your Foldable • Cover: Reading the Periodic Table • Columns and Rows • Alkali Metals and Alkaline Earth Metals • Transition Metals & Other metals • Metalloids • Non-metals • Halogens and Noble Gases • The Periodic Table

6. Reading the Periodic Table

7. A way of organizing & classifying elements • Arranged in rows and columns

8. Columns • The vertical (up and down) columns of the periodic table (there are 18) are called groups or families. • Elements in the same group or family have similar characteristics or properties.

9. Rows • The horizontal rows of the periodic table are called periods. • Elements in a period are not alike in properties. • The first element in a period is usually an active solid, and the last element in a period is always an inactive gas.

10. Rows • Atomic size (number of protons) decreases from left to right across a period. • Atomic mass (number of protons) increases from left to right across a period.

11. Rows • Metals are on the left • Non-metals are on the right

15. ALKALI METALS • very reactive metals that do not occur freely in nature • malleable, ductile, good conductors of heat and electricity. • softer than most other metals • can explode if they are exposed to water

16. ALKLINE EARTH METALS • metals • very reactive • not found free in nature

17. TRANSITION METALS • ductile and malleable, and conduct electricity and heat • iron, cobalt, and nickel, are the only elements known to produce a magnetic field.

18. RARE EARTH ELEMENTS • many are man-made

19. OTHER METALS • are ductile and malleable • are solid, have a relatively high density, and are opaque

20. METALLOIDS • have properties of both metals and non-metals • some of the metalloids, such as silicon and germanium, are semi-conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators

21. NON-METALS • not able to conduct electricity or heat very well • very brittle, and cannot be rolled into wires or pounded into sheets • exist in two of the three states of matter at room temperature: gases (such as oxygen) and solids (such as carbon). • have no metallic luster, and do not reflect light.

22. HALOGENS • "halogen" means "salt-former" and compounds containing halogens are called "salts" • exist in all three states of matter: • Solid- Iodine, Astatine • Liquid- Bromine • Gas- Fluorine, Chlorine

23. NOBLE GASES • do not form compounds easily