Standard+2+Part+1+The+Periodic+Table


 * Standard 2, Part 1: Essential Questions **

1. What are the parts of an atom? 2. How does the composition of an atom affect its properties? 3. What is a proton and where is it located? 4. What is a neutron and where is it located? 5. What is an electron and where is it located? 6. How does the mass of a proton compare with the mass of a neutron? An electron? 7. What is the charge of a proton? 8. What is the charge of a neutron? 9. What is the net charge of the nucleus of an atom? 10. What is the charge of an electron? 11. What are the relative interactive forces between like particles and between unlike particles? 12. What is the relationship between the charge of an atom and the number of protons and electrons? 13. What is an electron cloud? 14. What happens to the position of electrons as their energy increases? 15. What are energy levels? 16. What determines the identity of an atom (or element)? 17. How does the number of neutrons affect the identity of an element? 18. How does the number of electrons affect the identity of an element? 19. What is the basis for the mass of an atom? 20. What happens to particles in the nucleus of an atom during a chemical reaction? 21. What part of an atom is involved in chemical reactions and what are the ways that those particles can interact with other atoms? 22. What determines the volume of an atom and how does the volume of the atom compare to the volume of the nucleus? 23. How would you compare the actual physical nature of an atom to the models that are used to describe it in the classroom?* 24. What is atomic number and how is it identified/represented on the periodic table? 25. What is mass number and can it be found on the periodic table? 26. What is an isotope? 27. What is atomic mass and can it be found on the periodic table? 28. What are at least two ways of illustrating isotopes? 29. What do we call an isotope with an unstable nucleus (an improper ratio of neutrons and protons)? 30. What is (and what is the cause of) nuclear decay? 31. What is radiation and what are three common types of radiation?

33. What are the parts of the periodic table? 34. What is a period? 35. What is a Group (or Family)? 36. What are the three major categories of elements and where are they located on the periodic table? 37. How do you locate elements given their period and group? 38. How do you determine a given element’s atomic number? 39. How many electrons does an atom of a given element contain? 40. How would you determine the number of energy levels in an atom? 41. How would you determine a given element’s atomic mass? 42. How would you determine the number of valence electrons in an element? 43. What is a valence electron? 44. What is the periodic trend in the number of valence electrons in periods 1 – 3? 45. What is the periodic trend in the number of valence electrons in groups (focus on groups 1 – 2 and 13 – 18)? 46. How would you predict properties of elements based on periodic trends?*