Physical Science Vocabulary

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Across
  1. 2. elements that are a mix of metal and nonmetal
  2. 4. total number of protons and neutrons
  3. 5. subatomic particle with positive charge
  4. 8. subatomic particle with no charge
  5. 9. a set of elements in the same vertical columns on the periodic table
  6. 11. physically distinctive form of matter such as a solid, liquid, gas, or plasma
  7. 13. new substances made through forces of attraction
  8. 15. cations with metallic bonds
  9. 18. an outer shell electron that is associated with an atom
  10. 21. horizontal rows on the periodic table
  11. 22. bonding where electrons are lost or gained
  12. 24. the number of protons in the nucleus
  13. 26. an atom loses an electron, which creates a positive ion
  14. 30. atom(s) that carry an overall positive or negative charge
  15. 31. organizedd array of all of the chemical elements in order of increasing atomic number
  16. 33. notations used to identify compounds; consist of symbols of the elements and a small number that tells how many atoms are present
Down
  1. 1. compounds that consist of only two elements the number of positive and negative charges must be the same
  2. 3. model in which electrons form a cloud of negative charges surrounding the nucleus
  3. 6. atoms joining together as a result of forces of attraction
  4. 7. average mass of all the isotopes of that element
  5. 10. groups of atoms joined by covalent bonds
  6. 12. small number below the baseline; in a chemical formula, it tells how many atoms are present
  7. 14. atom gains an electron, making it negative
  8. 16. a regular variation of the properties of an element with increasing atomic number
  9. 17. metal and nonmetals come together to form an electrically neutral compound
  10. 19. electrons are organized into energy level; the ones closest to the nucleus have less energy than ones farther away
  11. 20. smallest unit that still has the chemical properties of an element
  12. 23. one or more columns on the periodic table
  13. 25. center of the atom made up of protons and neutrons
  14. 27. atoms with the same number of protons, but different numbers of neutrons
  15. 28. any of the chemical elements belonging to the s and p blocks of the periodic table
  16. 29. nonmetallic elements; not able to conduct electricity/heat well
  17. 32. subatomic particle with a negative charge