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OpenStudy (anonymous):
Which element is a halogen and has a larger average atomic mass than arsenic (As)? a. selenium (Se) b. iodine (I) c. strontium (Sr) d. chlorine (Cl)
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OpenStudy (anonymous):
Iodine.
OpenStudy (anonymous):
because iodine and chlorine are the only two halogens in the choices. and Iodine's heavier and one option should be correct. so, Iodine.
OpenStudy (anonymous):
iodine is halogrn and has more porotons than chlorine .
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