Chemistry

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Across
  1. 4. State of matter. Attraction between particles holds them in a shape very strongly. Particles vibrate.
  2. 5. Group/Family/Column on the Periodic Table. 7 valence electrons. Fluoride, Chlorine, Bromine, Iodine, Astatine.
  3. 9. The symbol is Al on the periodic table
  4. 10. Group/Family/Column on the Periodic Table. Very unreactive because it has full valence shells. Colourless gasses at room temperature.
  5. 14. A table that lists the known elements in row (period) and columns (group/family).
  6. 16. A particle (atom) with either a positive (Cation) or negative (Anion) charge.
Down
  1. 1. Group/Family/Column on the Periodic Table. Shiny, soft, malleable, low melting point. One valence electron.
  2. 2. First element of the periodic table and the Alkali Metals
  3. 3. Anything that has mass and takes up space
  4. 6. Number of protons
  5. 7. A mix of multiple different metals
  6. 8. Substance containing one type of particle. Two types: Element and compound.
  7. 11. State of matter. Particles move a little, and take the shape of its container.
  8. 12. State of matter. Particles move fast. Flow out of the container.
  9. 13. Has an atomic number of 8 on the periodic table. Needed for breathing.
  10. 15. Has an atomic mass of about 15.9994