Why ClF7 is not known but …
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Posted by Anupam Chaurasia 7 years, 10 months ago
- 1 answers
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Dr. Kamlapati Bhatt 7 years, 10 months ago
Although theoretically it is logical to view a possibility of the existance of ClF7 simillar to IF7 , but practically Cl F7 is unknown and hence , it does not exist .The following reasons support the non - existance of ClF7 .
(1) electronegativity difference between the combining atoms is large
(2) the difference in atomic sizes are great.
The difference in atomic sizes of Cl and F is is lesser than that of I & F . In case of F their happens to be a much greater difference in its atomic sizes when compared to that of I .So, small F atoms can be easily accomodated around iodine atoms to form IF7 . Thus , IF7 exists , while ClF7 is not known.
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