Science Vocab (chapter 4)

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Across
  1. 3. a column of elements in the periodic table having similar valence electron arrangement, resulting in similar chemical properties; also known as a group
  2. 6. a row in the periodic table of the elements; also called a series
  3. 7. any elements in Groups 3–12 of the periodic table, typically having one or two valence electrons, which are easily lost, resulting in cations with charges of 1+ or 2+
  4. 9. an element from either of two rows usually placed below the periodic table; a member of either the lanthanide or actinide series.
  5. 13. an electron in the outermost energy level of a neutral atom
  6. 16. a representation of an element’s ability to attract and hold electrons when bonded to other atoms
  7. 18. an element that is typically dense, solid, ductile, malleable, highly conductive, and chemically reactive, especially in the presence of nonmetal elements
Down
  1. 1. an element in Group 1 of the periodic table, having one valence electron that it can easily lose to form a 1+ cation, making it extremely reactive
  2. 2. a table of the chemical elements arranged to display their periodic properties in relation to their atomic numbers
  3. 4. a measure of an element’s ability to attract and hold electrons when bonded to other atoms
  4. 5. any of groups 13-16 in the periodic table; so named because they contain metals, nonmetals, and metalloids
  5. 8. an element with characteristics between those of metals and nonmetals; also called semiconductors
  6. 10. an element that typically has four or more valence electrons and that does not exhibit the general properties of metals
  7. 11. an element in Group 2 of the periodic table, having two valence electrons that it tends to lose easily to become a 2+ cation, making it very reactive
  8. 12. an element in Group 17 of the periodic table having seven valence electrons
  9. 14. the law that states that the properties of the elements vary with their atomic numbers in a regular, repeated pattern
  10. 15. the distance from the center of an atom’s nucleus to its outermost energy level
  11. 17. an element in Group 18 on the periodic table having eight valence electrons that fill the outer energy level (helium is an exception with only two)