Arundhati’s Periodic crossword table

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Across
  1. 6. an atom found in group 2
  2. 7. element in group 2, period 4
  3. 8. elements found in groups 3-12 of the periodic table
  4. 9. diagram representing the arrangement of electron shells in an atom
  5. 13. a positively charged ion
  6. 16. electrons that can move between atoms easily
  7. 17. elements on the right-hand side of the periodic table
  8. 18. a substance made up of only one type of atom
  9. 21. number of protons in an atom
  10. 23. has an atomic number of 2
  11. 24. creator of the periodic table framework in 1869
  12. 25. a small group of elements with properties that are a mix of metals and nonmetals
  13. 26. subdivision of electron shells separated by electron orbitals
  14. 29. arrangement of elements according to their atomic number
Down
  1. 1. where elements can be found
  2. 2. an atom found in group 1
  3. 3. Element with a mass number of 6.941 u
  4. 4. Gaseous elements found in group 18 of the periodic table
  5. 5. a negatively charged ion
  6. 7. bonds formed by two or more shared atoms
  7. 10. elements on the left-hand side of the periodic table
  8. 11. electrons arranged in each shell surrounding an atom
  9. 12. The outermost shell in an atom
  10. 14. the use of individual atoms to create structures
  11. 15. sum of protons and neutrons of an atom
  12. 19. elements listed horizontally
  13. 20. Molecules formed by anions and cations
  14. 22. representation of atoms in a series of shells around the atomic nucleus
  15. 27. group of elements found in group 17
  16. 28. elements listed vertically