Compounds Physical Science

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Across
  1. 4. Elements in the same group have ______________ properites.
  2. 5. These numbers are used to show how many electrons were either lost or gained to write chemical names
  3. 9. Covalent bonds are formed when electrons are ___________________.
  4. 11. Covalent bonds are formed between a ______________ and a ________________.
  5. 12. The oxidation numbers must equal __________ to write a chemical formula.
  6. 13. This side of the periodic table is made of metals.
  7. 15. The anion is the ___________________ ion.
  8. 16. Which group on the periodic table is nonreactive elements.
  9. 18. This ion is always written first in a chemical name.
  10. 20. These columns show families.
  11. 22. Name the following compound: AgSO4
  12. 23. This ion is always written second in a chemical name.
  13. 25. The cation is the _________________ ion.
  14. 27. These large numbers are placed in front of a chemical name to show multiple molecules.
  15. 29. The group number tells you the number of _______________ electrons in the last energy level.
  16. 30. A shorthand way of writing chemical names are called chemical _____________.
Down
  1. 1. When an atom loses electrons it becomes a _________________ charged ion.
  2. 2. These rows run left to right on the periodic table.
  3. 3. The small numbers that tell you how many atoms are in a chemical formula are called _________________.
  4. 6. These molecules are formed between two of the same elements.
  5. 7. Ionic bonds are formed between a ____________ and a ___________
  6. 8. Write the name for N2P5.
  7. 10. These bonds are formed when two ions attract.
  8. 11. When an atom gains electrons it becomes a ___________________ charged ion.
  9. 14. These elements are found along the staircase of the periodic table.
  10. 17. These ions act like one element, but are composed of multiple elements.
  11. 19. Ionic bonds are formed from the _________________ of electrons.
  12. 21. This side of the periodic table is made of nonmetals.
  13. 24. The electrons in the last energy level are called the ________________ electrons.
  14. 26. The period number tells you the number of energy ____________ of an atom.
  15. 28. ________________ are formed between two different elements.