CROSS WORD PUZZLE

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Across
  1. 4. WHICH IS THE MOST CONDUCTIVE METAL ON PERIODIC TABLE
  2. 7. PERIODIC TABLE WAS FORMULATED BY
  3. 12. ELEMENT SILVER IS NAMED AFTER WHICH COUNTRY
  4. 13. WHICH IS ONE OF THE MOST EXPENSIVE METAL AND A SUPER CONDUCTOR
  5. 14. WHAT IS THE COLOUR OF FLOURINE GAS
  6. 15. WHO IS RESPONSIBLE FOR MAINTAINING PERIODIC TABLE
Down
  1. 1. WHICH IS THE NOBLE GAS USED FOR FILLING BALLOONS
  2. 2. WHICH IS THE FIRST ELEMENT THAT WAS ARTIFICIALLY MADE
  3. 3. WHICH IS THE MOST ABUNDANT ELEMENT THAT OCCUR 75% OF ORDINARY MATTER
  4. 5. HOW MANY PERIODS ARE THERE ON PERIODIC TABLE
  5. 6. WHICH SEMICONDUCTOR ELEMENT WITH AN APPEARENCE SIMILAR TO ELEMENT SILICON
  6. 8. WHICH ELEMENT IS KNOWN AS KING OF POISON
  7. 9. WHAT IS THE COMMON COLOUR THAT YOU CAN SEE IN PURE CARBON
  8. 10. WHICH METAL IS KNOWN AS 'POISONER'S POISON'
  9. 11. MOST METALLIC ELEMENT ON PERIODIC TABLE