science

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Across
  1. 5. I'm slippery base often found in the first column
  2. 7. I'm reactive nonmetals in group 17
  3. 8. I'm the lightest a vertical family on the periodic table
  4. 9. I'm shiny ,I conduct,I can be hammered
Down
  1. 1. I live in the nucleus and my number defines who you are
  2. 2. I organize elements
  3. 3. I'm a fund-able building block of matter put
  4. 4. I'm a bit of both worlds,a semiconducter with mixed traits
  5. 6. I'm a vertical family on the periodic table