General chemistry 1

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Across
  1. 3. _______has the highest metallic character of alkaline earth metals.
  2. 7. Substances have only paired electrons are called________.
  3. 8. Halogen that is smaller than iodine.
  4. 9. Chemical bond occurs by sharing of electrons is called________ bond.
  5. 12. Elements in d-block of the periodic table of elements are called ______ metals.
  6. 14. The same elements with different number of neutrons are called________.
  7. 15. The scientist who suggested the atomic model with energy levels.
Down
  1. 1. Elements in the same ______ of the periodic table have similar chemical properties.
  2. 2. The shape of xenon difluoride molecule is ______.
  3. 4. The elements in group 1A are called ______ metals.
  4. 5. The _________ indicates the tendency of an atom to attract electrons towards itself.
  5. 6. Element with electron configuration [Ar]4s1 3d10
  6. 10. The solubility of an ionic compound is related to its ________energy.
  7. 11. The identity of an atom is defined by the number of _______ in the nucleus.
  8. 13. The scientist who is famous for discovery of electrons.