Physical Science Cross Word Puzzle

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Across
  1. 6. composed of ions of two different elements - one of which is a metal, and the other a nonmetal.
  2. 7. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  3. 8. the total number of protons and neutrons in an atomic nucleus
  4. 11. the basic units of matter and the defining structure of elements.
  5. 15. a substance composed of exactly two different elements, which are substances that cannot be simplified further by chemical means.
  6. 16. an atom or molecule that has a positive charge.
  7. 17. an ion with a positive charge
  8. 19. A negatively charged particle
  9. 22. the arrangement of electrons within an atom.
  10. 23. a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson.
  11. 26. the system of electrons surrounding the nucleus of an atom.
  12. 27. one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behaviour but with different atomic masses and physical properties
  13. 28. A chemical bond formed when ionic bonds
  14. 30. the joining together of atoms caused by forces of attraction
  15. 32. vertical line on the periodic table
  16. 33. an ion with a negative charge
Down
  1. 1. the mass of an atom
  2. 2. any substance composed of identical molecules consisting of atoms of two or more chemical elements.
  3. 3. A particle with a neutral charge
  4. 4. electrons in the outermost shell of the atom that determine an atom's or group's ability to bond with others.
  5. 5. A type of lettering form written lower than the things around it.
  6. 9. a chemical bond that involves the sharing of electron pairs between atoms.
  7. 10. any of the chemical elements belonging to the s and p blocks of the periodic table.
  8. 11. the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  9. 12. an atom or molecule that carries an electric charge.
  10. 13. a positively charged particle that is a fundamental constituent of all atomic nuclei.
  11. 14. horizintal lines on the periodic table
  12. 18. the positively charged central core of an atom consisting of protons and neutrons and containing nearly all its mass.
  13. 20. vertical lines on the periodic table
  14. 21. specific patterns that are present in the periodic table that illustrate different aspects of a certain element
  15. 24. a notation used by scientists to show the number and type of atoms present in a molecule, using the atomic symbols and numerical subscripts.
  16. 25. element that mostly lacks the characteristics of a metal.
  17. 29. an atom or molecule that has a negative charge.
  18. 31. an element that readily forms positive ions (cations) and has metallic bonds