chemistry

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Across
  1. 6. and changes of matter reaction rates reactions mechanisms
  2. 7. changes change where properties of the material change it the identity doesn't
  3. 12. The charge of a monatomic ion.
  4. 18. Group 2 elements
  5. 21. A positively charged ion.
  6. 23. A one-atom ion
  7. 24. contains all of the other elements
  8. 25. element that is a solid at room temperature, a good conductor of heat and electricity, and generally is shiny
  9. 27. comes from the Greek atomos and means "indivisible.
  10. 30. energy required to remove an electron from a gaseous atom
  11. 32. states that when the elements are arranged by increasing atomic number, there is a periodic repetition of their chemical and physical properties
  12. 36. An ionic compound whose aqueous solution conducts an electric current.
  13. 38. It has atoms of the original metallic solid replaced by other metallic atoms of similar size.
  14. 40. Ions made up of more then one atom
Down
  1. 1. A vertical column of elements in the periodic table; also called a family
  2. 2. study of motion and forces
  3. 3. horizontal row on the periodic table
  4. 4. study of composition of matter and the changes it under goes
  5. 5. matter and processes of living organisms metabolism fermentation
  6. 8. The force that holds two atoms together
  7. 9. group 17 elements
  8. 10. The simplest ratio of the ions represented in an ionic compound.
  9. 11. The attraction of a metallic cation for delocalized electrons.
  10. 13. can be seen, touched, and measured directly
  11. 14. groups 3-12
  12. 15. an element that has physical and chemical properties of both metals and nonmetals
  13. 16. all around one element contains carbon pharmaceuticals and plastics
  14. 17. atom or group of atoms with a positive or negative charge
  15. 19. The electrostatic force that holds oppositely charged particles together in an ionic compound.
  16. 20. elements that are generally gases or dull, brittle solids that are poor conductors of heat and electricity
  17. 22. indicates the relative ability of an element's atoms to attract electrons in a chemical bond
  18. 26. A negatively charged ion.
  19. 28. states that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons
  20. 29. study of all living things
  21. 31. gas group 18 elements; very unreactive
  22. 33. Group 1 elements; except for H
  23. 34. A three-dimensional geometric arrangement of particles.
  24. 35. A mixture of elements that has metallic properties
  25. 37. Anions that take their name from the root of the element name plus the suffix -ide.
  26. 39. small particles that make up matter