HC U3 key term review

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Across
  1. 4. refers to the energy to separate an electron from an atom or ion
  2. 5. consists of mostly atoms of one type of metal with small amounts of another type of atom mixed within
  3. 6. large number used in front of chemical formulas in chemical equations to show the count of particles taking part in the reaction (compared to the other substances)
  4. 8. substances prior to any chemical change
  5. 14. chemical formula typically ends with -OH (hydroxide ion)
  6. 15. formula that shows how atoms are bonded; bonds are often shown as lines
  7. 17. two compounds reactat so that members of each compound switch what they are bonded with
  8. 18. substance made of only one type of particle
  9. 20. refers to the half the distance between two nuclei of bonded atoms...OR, in common terms, distance between nucleus and outermost electrons
  10. 23. factors that affect level of interaction between charged particles, including magnitude of charge and distance
  11. 24. negatively charged ion due to more electrons than protons
  12. 25. bond type between positive and negative ions; no electrons are shared
  13. 26. bond type between metal atoms; involves the sharing of all valence electrons with all nearby atoms
  14. 28. composed of atoms linked by chemical bonds
Down
  1. 1. bond type between nonmetal atoms in which some valence electrons are shared with one other atom
  2. 2. multiple types of reactants unite to form one type of product
  3. 3. substances after a chemical change
  4. 7. this uses chemical formulas and + signs and an arrow to show how reactants differ from products
  5. 9. formula composed of element symbols and subscripts
  6. 10. a change in the distance between the reactant particles, but NOT a change to bonds
  7. 11. refers to an atom's ability to attract additional electrons to it's valence shell
  8. 12. positively charged ion due to less electrons than protons
  9. 13. one type of reactant breaks into multiple types of products
  10. 16. term used in front of an element name to indicate the count of atoms in a covalent molecule
  11. 19. a change that involves breaking and/or making chemical bonds
  12. 21. chemical formula typically begins with H-
  13. 22. an element and compound reactant so they element bonds with a member of the compound, but leaves the other member all alone
  14. 26. made of more than one type of particle
  15. 27. chemical reaction in which O2 is a reactant