Ch # 5 The Halogens and The Noble Gases Short Question
The elements fluorine (F), chlorine (a), bromine (Br), iodine (I) and astatine (At) are called halogens. These elements are called the halogens from Greek hals, “salt” and gennan, “to form or generate”, because they are literally the salt förmers. The elements helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are placed in the zero group or group VIIIA of the periodic table………..
- Peculiar Behaviour of Fluorine.
- Oxidizing Properties.
- Compounds of Halogens.
- Commercial Uses of Halogens and their Compounds.
- Noble Gases.
In this chapter you will learn:
- The electronic configurations and the occurrence of halogens, the peculiar behaviour of flourine.
- The volatility of halides and its explanation in terms of vander waals forces.
- The relative reactivities of halogens as oxidizing agents.
- The properties of hydrogen halides, oxides and oxyacids of halogens.
- The comparison of thermal stability of hydrides in terms of bond energies.
- Reaction of chlorine with sodium hydroxide (hot/cold).
- The preparation and reaction of bleaching powder.
- The commercial uses of halogens and their compounds as bleaches, refrigerants and aerosols.
- The electronic configurations, physical properties, inertness and isolation of noble gas from air.
- The properties of oxides, fluorides and oxyfluorides of xenon.
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