I guess as an addendum to The Longest Word Made from Chemical Symbols
What is the longest word in the ENGLISH language that can be formed by combining chemical symbols and has no repeat elements in its name?
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To ensure that we dont search something less than 20 charaters I am posting this
If only unique usage (each element being used once is a condition) then
There is a tie between "hypercoagulabilities" and "hyperconsciousnesses" ("HYPErCoAgULaBiLiTiEs" and "HYPErCoNScIOUSnEsSeS") - both are 20 characters
In case if this is found as the valid answer in a reasonable amount of time, then yes this question can be considered duplicate (but not deleted)
To ensure that I dont get credits for copying and pasting and in the true sense this is community wiki's primary purpose as per me, I am marking it as community wiki