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Electron affinity of SF(5) is among the ...

Electron affinity of `SF_(5)` is among the highest known but that of `SF_(6)` is quite modest.

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Sulfur in `SF_(6)` is saturated in terms of maximum covalency and maximum coordination number and so it has very little tendency to attract electron. In `SF_(5)` which is actually a free radical so it has got a very strong tendency to attract an electron to fulfill its covalency and co-ordination number. There fore the electron affinity of `SF_(5)` is high.
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