Periodic Trends

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Across
  1. 4. element or substance that is not a metal.
  2. 5. Chemically they show variable valence and a strong tendency to form coordination compounds, and many of their compounds are colored.
  3. 8. elements, when listed in order of their atomic numbers fall into recurring groups, so that elements with similar properties occur at regular intervals.
  4. 10. metals chemical compound that neutralizes or effervesces with acids and turns litmus blue
Down
  1. 1. reactive, electropositive, divalent metals, and form basic oxides which react with water to form comparatively insoluble hydroxides.
  2. 2. elements where the s and p orbitals are filling
  3. 3. an element whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
  4. 6. gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table.
  5. 7. solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
  6. 9. reactive nonmetallic elements that form strongly acidic compounds with hydrogen from which simple salts can be made.