What is the name of the compound #"SI"_6"#?

1 Answer
Meave60
Nov 10, 2015

The name of the compound #"SI"_6"# is sulfur hexiodide.

Explanation:

Since sulfur and iodine are nonmetals, this is a binary molecular compound. A binary molecular compound is named so that its subscript numbers are indicated as Greek prefixes in its name. However, if the first element has a subscript of 1 (understood), the prefix mono - is not used. The name of the second element in the compound loses one or two syllables, and it ends with the suffix #("-ide")#. The compound #"SI"_6"# is named sulfur hexiodide, as the prefix for #6# is hexa -, and the name for iodine is changed to iodide.

http://ths.talawanda.org/~bramblen/classroom/Chemistry/Notes/Section%203A/MolecularCompounds.htm

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