Periodic Variation of Ionization Energy and Electron Affinity Lecture Demonstrations - ChemPRIME

Periodic Variation of Ionization Energy and Electron Affinity Lecture Demonstrations

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Contents

Activities of Alkali Metals

Add small pieces of Li, K, Na to water, with universal indicator if desired, to show relative activities.

Hazards: K forms a peroxide coating that may explode when cut with a knife.


Activities of the Halogens[1][2][3][4]

Displace I, Br from NaI and NaBr solutions with Cl2 (extract halogens into nonpolar solvent like hexane to make them more visible)[5].

Show that I2 does not displace Cl2 from NaCl, etc.

Reaction of Antimony with Halogens [6]

References

  1. Furse, A. J. Chem. Educ., 1947, 24 (9), p 445
  2. J. Chem. Educ., 1969, 46 (2), p A108
  3. Alyea, H. J. Chem. Educ., 1969, 46 (2), p A108
  4. J. Chem. Educ., 1933, 10 (10), p 637
  5. J. Chem. Educ., 1969, 46 (2), p A108
  6. J. Chem. Educ., 1969, 46 (2), p A108
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