Chemistry

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