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Given bh3, o3, co2, and nh3, which of these compound is an exception to the octet rules?.

User Runita
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1 Answer

16 votes
16 votes

Answer:

a. BH₃

Step-by-step explanation:

According to the octet rules, atoms reach stability when are surrounded by eight electrons in their valence shell when they combine to form a chemical compound.

From the options, the only compound in which the central atom does not meet the octet rules is BH₃. The central atom is boron (B), which has 3 electrons in its valence shell. When B is combined with hydrogen (H), 3 electrons from the 3 atoms of H are added. The total amount of electrons is 6, fewer than 8 electrons needed to meet the rule.

hope this helps

User Dave Kielpinski
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