2. Hosted by Ms. Schmidt

3. 100 200 400 300 400 Matter AtomsThe Periodic Table ??????? 300 200 400 200 100 500 100

4. Row 1, Col 1 The measurement of how much matter an object contains is called… mass

5. 1,2 What are the positive particles in an atom called? What is a proton?

6. 1,3 The columns on the periodic table of elements are called… Groups or families

7. 1,4 What is the measurement of of the force of gravity on an object called? weight

8. 2,1 Name two pieces of evidence that would prove a chemical Change has taken place. Odor, heat, light, change in color…

9. 2,2 What are the electrons found in an atom’s outermost energy level called? valence electrons

10. 2,3 What group are the most reactive elements found in? The least reactive? Alkali metals; noble gases

11. 2,4 What is the density of a ball that has a volume of 30 ml and a mass of 60 grams? 2 g/ml

12. 3,1 1. Give an example of an endothermic change 2. Give an example of an exothermic change Ice melting; fireworks

13. 3,2 How do you find the number of neutrons in an element? Take the element’s atomic mass and subtract the number of protons from it.

14. 3,3 What category (Metals, non-metals, or metalloids) of elements are the following statements true for? Usually Solid at room temperature ductile and malleable Good conductors of heat and energy Metals

15. 3,4 Which type of elements shares characteristics of both metals and nonmetals? Metalloids

16. 4,1 Describe how you would find The density of an irregular object.

17. 4,2 How many protons does Carbon have? 6

18. 4,3 What are the two most common Alkaline Earth Metals? Calcium and Magnesium

19. 4,4 In the modern periodic table, Elements are arranges by…. Atomic number and properties

20. 5,1 What do we call substances that cannot be broken down into other substances? (Hint: the answer is not pure substances) Elements

21. 5,2 What property of metalloids make them useful in computer Chips? Varying ability to conduct electricity.

22. 5,3 Which group or family is described by the following characteristics? Highly reactive Poor conductor of heat and Energy 7 valence electrons Halogen Family

23. 5,4 Each family in the periodic Table has its own characteristic Properties bases on the number of __________ valence electrons

24. Bonus Question: You may wager some or all of your current points. A purebred chicken with white feathers is crossed with a purebred chicken that has black feathers. Each offspring has both black and white feathers. Why does this happen?