Periodic table crossword

Edit Answers
123456789101112131415161718192021
Across
  1. 2. is a chemical element with an atomic number of 8
  2. 3. .
  3. 5. a yellow precious metal, the chemical element of atomic number 79
  4. 7. metallic elements that have valence electrons in two shells instead of only one
  5. 11. a common reddish metallic element that is ductile and malleable
  6. 15. a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82.
  7. 16. A whole number that represents the ability of an atom or a group of atoms to combine with other atoms or groups of atoms.
  8. 18. nonmetallic element of Group 15 [Va] of the periodic table.
  9. 19. metallic element used in alloy steels for hardness and corrosion resistance
  10. 20. chemical element of the alkali metal group (Group 1 [Ia]) of the periodic table.
  11. 21. the chemical element of atomic number 2, an inert gas which is the lightest member of the noble gas series.
Down
  1. 1. A nonmetallic element that exists in its free form
  2. 4. a precious shiny grayish-white metal, the chemical element of atomic number 47.
  3. 6. a colorless and non-flammable gas at normal temperature and pressure.
  4. 8. any of the six chemical elements that make up Group 1 (Ia) of the periodic table
  5. 9. a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys
  6. 10. a mineral that your body needs to work properly.
  7. 12. the chemical element of atomic number 3, a soft silver-white metal. It is the lightest of the alkali metals.
  8. 13. chemical element of atomic number 16, a yellow combustible nonmetal.
  9. 14. a very hard almost colourless crystalline metalloid element that in impure form exists as a brown amorphous powder.
  10. 17. the chemical element of atomic number 20, a soft gray metal.