Ch. 5 Test Review

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Across
  1. 6. The energy required to remove one electron from a neutral atom of an element
  2. 8. Group 17 elements
  3. 9. an atom or group of bonded atoms that has a positive or negative charge
  4. 10. columns on the periodic table that share similar chemical properties
  5. 11. a negative ion
  6. 12. p-block and s-block elements
  7. 15. discovered that the elements fit into patterns better when they were arranged according to atomic number, rather than atomic mass.
  8. 18. ________ tend to form cations.
  9. 20. Any process that results in the formation of an ion
  10. 21. outer-shell electrons that are used to form chemical compounds
  11. 26. additions to the periodic table after Mendeleev’s version
  12. 31. metallic elements located in the d-block
  13. 33. Mendeleev placed all the known elements in his periodic table. Several _______ ________ were left.
  14. 34. Group 1 elements
  15. 35. Group 2 elements
  16. 36. Mendeleev predicted the ____________ of elements that would fill three of the spaces.
Down
  1. 1. is arranged by atomic mass
  2. 2. Anions form when an atom ______ one or more electrons.
  3. 3. the second row of the f block; they are all radioactive
  4. 4. The energy change that occurs when an electron is acquired by a neutral atom
  5. 5. is arranged by atomic number.
  6. 7. The difference in atomic numbers down a group is ____ ______ for each main group.
  7. 13. ________ tend to form anions.
  8. 14. repeating patterns
  9. 16. created a table of elements so that similar properties were grouped together, called the periodic table of the elements
  10. 17. a measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound
  11. 19. Cations form when an atom ______ of one or more electrons.
  12. 22. rows of the periodic table
  13. 23. a positive ion
  14. 24. an arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group
  15. 25. the first row of the f block; they are shiny metals
  16. 27. Group 18 elements
  17. 28. means "one"
  18. 29. one-half the distance between the nuclei of identical atoms that are bonded together
  19. 30. states that the physical and chemical properties of the elements are periodic functions of their atomic numbers.
  20. 32. Mendeleev used “eka” to show that the unknown element was ____ _______ _____ from the known element