Across
- 4. all elements located in Group 2 on the periodic table
- 6. all elements located in Group 17 on the periodic table; have high electronegativities
- 9. the energy required to REMOVE one electron from an atom of an element; measured in kJ/mol
- 12. metals are malleable (can be hammered into thin sheets and bent), ductile (can be drawn into wire), have luster (shine), and conduct electricity; metals tend to lose electrons; all metals have a “sea of mobile valence electrons”
- 13. elements that have all four properties/characteristics of a metal; located under/to the left of the staircase, except for Hydrogen (H)
- 14. have no definite shape and fill their container; at STP this includes H, N, O, F, Cl, & all of group 18 (the noble gases)
- 15. vertical columns on periodic table
- 17. horizontal rows on periodic table
- 18. the radius of an atom; measured in pm (picometers)
- 19. nonmetals are NOT malleable (shatter upon being hit with a hammer), NOT ductile, do NOT have luster (dull), and do NOT conduct electricity
- 20. a measure of the relative tendency of an atom of an element to attract or gain electrons; the “desire” to gain electrons; electronegativity is based on a scale from 0.0-4.0
- 22. elements that have two properties/characteristics of metals; located along the “staircase,” except for aluminum (Al)
- 23. cyclic; repeating pattern/cycle
Down
- 1. any of the three phases in which an element can exist; solid (s), liquid (l), gas (g)
- 2. elements with similar properties; group 1, 2, 17, and 18 on periodic table
- 3. take the shape of their container and have definite volume; only 2 elements exist as liquids at STP: Br, and Hg
- 5. the tendency for an atom of a given element to gain or lose electrons when interacting with an atom of another element
- 7. have definite shape and definite volume; most elements are solids at STP
- 8. elements of the periodic table are periodic functions of their atomic number
- 10. all elements located in Group 18 on the periodic table; inert (do not tend to react with atoms of other elements); have a full valence shell
- 11. all elements located in Group 1 on the periodic table except hydrogen; contains the most reactive metals
- 16. elements that have zero or one property/characteristic of a metal; located above/to the right of the staircase
- 21. full valence shell; 8 electrons, except for period 1 elements