Occurrence, Properties | p-Block Elements-II | Chemistry - Group 17 (Halogen group) elements | 12th Chemistry : UNIT 3 : p-Block Elements-II
Chapter: 12th Chemistry : UNIT 3 : p-Block Elements-II
Group 17 (Halogen group) elements
The halogens are present in combined form as they are highly reactive.
Group 17 (Halogen group) elements:
Chlorine
Occurrence:
The halogens are present
in combined form as they are highly reactive. The main source of fluorine is
fluorspar or fluorite. The other ores of fluorine are cryolite, fluroapatite.
The main source of chlorine is sodium chloride from sea water. Bromides and
iodides also occur in sea water.
Physical properties:
The common physical
properties of the group 17 elements are listed in the table.
Table 3.3 Physical properties of group 17 elements
Properties:
Chlorine is highly
reactive hence it doesn’t occur free in nature. It is usually distributed as
various metal chlorides. The most important chloride is sodium chloride which
occurs in sea water.
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12th Chemistry : UNIT 3 : p-Block Elements-II : Group 17 (Halogen group) elements | Occurrence, Properties | p-Block Elements-II | Chemistry
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12th Chemistry : UNIT 3 : p-Block Elements-II