Science vocab 4

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Across
  1. 2. table - a table of the elements, arranged in order of increasing atomic number, based on the periodic law.
  2. 4. transition metal - An element from either of two rows usually placed below the periodic table.
  3. 5. - A row in the periodic table of the elements; also called a series.
  4. 6. - A column of elements in the periodic table having similar valence electron arrangement, resulting in similar chemical properties; also known as a family.
  5. 8. - An element with characteristics between those of metals and nonmetals; also called semi-conductors; located between metals and nonmetals on the periodic table.
  6. 10. - An element that is typically dense, solid, ductile, malleable, highly conductive, and chemically reactive, especially in the presence of nonmetal elements.
  7. 11. metal - An element in Group 1 of the periodic table.
  8. 12. dot notation - A representation of an atom consisting of its chemical symbol with surrounding dots representing its valence electrons.
  9. 14. law - states that the physical and chemical properties of the elements recur in a systematic and predictable way when the elements are arranged in order of increasing atomic number.
  10. 15. - A column of elements in the periodic table having similar valence electron arrangement, resulting in similar chemical properties; also known as a group.
  11. 17. electron - Any electron in the outermost energy level of a neutral atom.
  12. 18. radius - The distance from the center of an atom's nucleus to its outermost energy level.
Down
  1. 1. - A measure of an element's ability to attract and hold electrons when bonded to other atoms.
  2. 3. - An element that typically has four or more valence electrons and that does not exhibit the general properties of metals; located on the right side of the periodic table.
  3. 7. - An element in Group 17 of the periodic table having seven valence electrons.
  4. 9. metal - Any elements in Groups 3-12 of the periodic table.
  5. 10. group - Any groups 13-16 in the periodic table.
  6. 13. Gas - An element in Group 18 on the periodic table having eight valence electrons that fill the outer energy level.
  7. 16. earth metal - An element in Group 2 of the periodic table.