Chapter 3 Test Study Sheet 3-1 Inside An Atom (76-80) 1. What are the 3 particles in an atom, where is each found, and what is the charge of each? 2. What tells the number of protons in an atom? 3. What particles are involved in moving between atoms? Where are they found? 4. What particles make up the mass of an atom? What unit is used for an atom’s mass? 5. Draw an atom of Helium. Label the parts. 3-2 Organizing the Elements (81-88) 6. How can an element’s properties be predicted? 7. Who created the modern periodic table? 8. A row in the periodic table is called a _______________ and a column is a ______________. 9. In the periodic table, elements are arranged by increasing ___________________________. 10. Do elements share more properties with others in their period or group? 11. Be able to figure out how many protons, neutrons, & electrons are in one atom of an element, based on its information in the periodic table. For example: 12. What information is found in each square of the periodic table? What does each piece of information tell you? 3-3 Metals (89-94) 13. Which properties are characteristics of most metals? Ductile Malleable Brittle Low Density Good conductors 14. What does it mean if a substance is ductile? 15. Which family of metals is the most reactive? 16. Which families are show at the bottom of the table? 17. What happens to the reactivity of metals as you move from left to right across the table? 18. How is the reactivity different for alkali metals and transition metals? 3-4 Nonmetals & Metalloids (98-103) 19. How is the reactivity different for halogens and noble gases? 20. What elements have properties of both metals and nonmetals? 21. What is the molecule called when two nonmetal atoms bond together? 22. What is the most reactive group of nonmetals? 23. Complete a Venn Diagram comparing & contrasting Alkali Metals & Halogens.