LEDS Crossword Puzzle

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Across
  1. 4. A Type of element that is not good conductors of heat and electricity and they usually exist in liquids or gases at room temperature.
  2. 6. It is a shorthand method that consists of a symbol of the element surrounded by dots.
  3. 7. The electrons that occupies the highest energy level in an atom.
  4. 9. The horizontal rows in the periodic table.
  5. 10. The vertical column in the in the periodic table that contain elements with similar properties.
Down
  1. 1. A type of element that is malleable, ductile, and good conductors of heat and electricity.
  2. 2. The negatively charged sub-atomic particle of an atom.
  3. 3. The part of an atom that contains the neutron and proton.
  4. 5. A type of element which physical and chemical properties fall in between the metal and non-metal categories.
  5. 8. The simplest form of matter.