How many protons , neutrons and electrons are in the iodide anion, ¹²⁷I^{- 1}?

Name: How many protons , neutrons and electrons are in the iodide anion, 127 I - 1 ?
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Question

Quizplus · Accepted Answer

The iodide anion has 53 protons (as the atomic number of iodine is 53), 74 neutrons (since the mass number is 127 and mass number = protons + neutrons, so 127 - 53 = 74), and 54 electrons (because it has a -1 charge, indicating one extra electron compared to the neutral atom).

How Many Protons , Neutrons and Electrons Are in the Iodide