Periodic Table

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Across
  1. 1. a tiny particle inside the centre of an atom. They make up most of the weight of an atom but are still very small.
  2. 5. what is the newest element in the periodic table
  3. 6. the tiniest energy dense particle in an atom
Down
  1. 2. number one one eight
  2. 3. what is number 1 on the periodic table
  3. 4. metals have a shiny appearance due to their ability to reflect light