Chapter 5: The Periodic Law

1234567891011121314151617181920212223242526272829
Across
  1. 1. Group 2, consists of Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra).
  2. 4. devised the periodic table in which the elements were arranged in increasing order of nuclear charge.
  3. 5. Block that contains the elements of Lanthanides and Actinides.
  4. 6. The 14 elements with atomic numbers from 90 (Thorium, Th) to 103 (Lawrencium, Lr)
  5. 8. A negative ion.
  6. 10. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
  7. 12. A positive ion.
  8. 13. Element that has the largest atomic radius.
  9. 15. devised the periodic classification of the chemical elements, in which the elements were arranged in order of increasing atomic weight.
  10. 17. Metals Group 1, consists of Hydrogen (H), Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr).
  11. 19. Element that has the smallest atomic radius.
  12. 21. Consists of the elements in Groups 3-12.
  13. 24. The electrons of the outer shell which are available to be lost, gained, or shared in the formation of chemical compounds.
  14. 26. Block that contains the elements in Groups 3-12.
  15. 28. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
  16. 29. The energy required to remove one electron from a neutral atom of an element.
Down
  1. 2. The energy change that occurs when an electron is acquired by a neutral atom.
  2. 3. Appearing or occurring at intervals.
  3. 6. One-half the distance between the nuclei of identical atoms that are bonded together.
  4. 7. Block that contains the elements in Group 1 and Group 2.
  5. 9. Group 17, consists of Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine (At).
  6. 11. An atom or group of bonded atoms that has a positive or negative charge.
  7. 14. Any process that results in the formation of an ion.
  8. 16. The s-block and p-block elements together are called.
  9. 18. An arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group.
  10. 20. Element that is the most electronegative.
  11. 22. A general direction in which something is developing or changing.
  12. 23. Block that contains the elements in Groups 13-18.
  13. 25. Group 18, consists of Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).
  14. 27. The 14 elements with atomic numbers from 58 (Cerium, Ce) to 71 (Lutetium, Lu)