Multiple Choice
What is the correct name for the molecular compound with the formula PI_3?
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3. Chemical Reactions
Naming Molecular Compounds
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What is the correct name for the compound with the formula IF_7?
A
Iodine hexafluoride
B
Iodine pentafluoride
C
Iodine heptafluoride
D
Iodine tetrafluoride
Verified step by step guidance1
Identify the elements in the compound formula IF_7: Iodine (I) and Fluorine (F).
Determine the number of atoms of each element: 1 iodine atom and 7 fluorine atoms.
Recall the prefixes used in naming molecular compounds to indicate the number of atoms: 'hepta-' means 7.
Combine the element names with the appropriate prefix for fluorine: 'Iodine' + 'hepta' + 'fluoride' to form 'Iodine heptafluoride'.
Confirm that the prefix 'hepta-' is used for 7 fluorine atoms, making 'Iodine heptafluoride' the correct name for IF_7.
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