Second 6 Weeks Vocabulary
| __ | 1. | Law of Octaves | | A. | Scientists who grouped elements into 8 groups | | __ | 2. | Law of Triads | | B. | similarities in element properties repeat every 8 elements | | __ | 3. | Mendeleev | | C. | Scientist who sorted elements by atomic number | | __ | 4. | Moseley | | D. | Scientist who made the first accepted periodic table | | __ | 5. | Newlands | | E. | groups of 3 elements whose average mass is close to middle |
| __ | 6. | Atomic Radius | | A. | general direction in which something is changing | | __ | 7. | electronegativity | | B. | distance from nucleus to furthest electron in an atom | | __ | 8. | ionic radius | | C. | how strongly an atom pulls on electrons in a compound | | __ | 9. | ionization energy | | D. | distance from nucleus to furthest electron in an ion | | __ | 10. | trend | | E. | energy needed to remove 1 electron from an atom |
| __ | 11. | coefficient | | A. | shows arrangement of electrons in energy levels & sublevels | | __ | 12. | electron configuration | | B. | image showing position and direction of electrons in an atom | | __ | 13. | orbital diagram | | C. | large number in front of a value | | __ | 14. | subscript | | D. | number written smaller and lower than text | | __ | 15. | superscript | | E. | number written smaller and higher than text |
| __ | 16. | energy level | | A. | columns of periodic table | | __ | 17. | group/family | | B. | rows of periodic table | | __ | 18. | period | | C. | where electrons are found, each period has the same number | | __ | 19. | sublevel | | D. | electrons in outer energy level, each group has the same # | | __ | 20. | valence electron | | E. | modern periodic table is grouped by these |
| __ | 21. | metal | | A. | metals lose electrons and increase charge | | __ | 22. | metalloid | | B. | nonmetals gain electrons and reduce charge | | __ | 23. | nonmetal | | C. | elements with properties of both metals and nonmetals (pink) | | __ | 24. | oxidation | | D. | elements on the left side of the periodic table (blue) | | __ | 25. | reduction | | E. | elements on the right side of the periodic table (yellow) |
| __ | 26. | Alkali metal | | A. | metals found in the D block of the periodic table | | __ | 27. | Alkaline Earth Metal | | B. | group 2 elements | | __ | 28. | Halogens | | C. | group 1 elements | | __ | 29. | inert | | D. | group 17 elements | | __ | 30. | Noble Gases | | E. | resistant to change, does not react | | __ | 31. | transition metal | | F. | group 18 elements, do not react |
| __ | 32. | Anion | | A. | metals donate electrons to nonmetals to form a compound | | __ | 33. | Cation | | B. | a positive ion | | __ | 34. | covalent bond | | C. | nonmetal share electrons to form a molecule | | __ | 35. | ion | | D. | a negative ion | | __ | 36. | ionic bond | | E. | covalently bonded elements with a charge | | __ | 37. | Polyatomic ion | | F. | an atom with a charge |
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