How many of the following elements can form compounds with an expanded octet?
I O Br Si

Name: How many of the following elements can form compounds with an expanded octet? I O Br Si
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Quizplus · Accepted Answer

Elements in period 3 and higher (such as Si and Br) can form compounds with an expanded octet due to the availability of empty d orbitals. Oxygen and iodine do not commonly form compounds with an expanded octet. Therefore, the elements that can form compounds with an expanded octet are Br, Si, and I (3 elements).

How Many of the Following Elements Can Form Compounds with an Expanded