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- why is boron metalloid
why is boron metalloid?
Answers (1)
Boron (B) is a metalloid bcz it has characteristics of both metals & non-metal.Boron acts as non-metal when it reacts with highly electro-positive metals as Na, K etc. & B acts as metal when it reacts with F (to produce BF3). Again, like non-metals ,it forms boron hydrides(i.e. not like NaH/KH etc. but like CH4, PH3 i.e. covalent hydrides). Again,B3+ is an example of borderline acid; B3+ shows “symbiosis” (BF3 is a hard acid & BH3 is a soft acid)——This fact also suggest that boron is a metalloid/semi-metal.
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