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2. lodine has an atomic number of 53 and a mass number of 127. It is in Group 7 of the periodic table. How many electrons does it have in its outer shell?​

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Answer:

Iodine has 7 electrons in its outer shell, also known as the valence shell.

Explanation:

Since Iodine is in Group 7, it tells us that it has 7 electrons in its valence shell. Hope this helped.

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