The ion formed by IODINE has electron configuration that resembles
a. Te
b. Kr
c. Xe
d. Br
e. we cant know unless told whether it gains or loses electrons
Jenny, Sarah, Dexter, Pandorah, et al.
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Remember that elements tend to lose or gain electrons to make them isoelectronic (the same number of electrons) with a noble gas. I, as a non-metal, tends to gain electrons.
To determine the ion formed by iodine (I), we need to consider its position in the periodic table and the number of electrons it gains or loses when forming an ion.
Iodine (I) is located in Group 17 of the periodic table, also known as the halogens. Halogens have a tendency to gain one electron to achieve a stable electron configuration similar to the nearest noble gas in the periodic table.
The nearest noble gas to iodine is xenon (Xe), which has the electron configuration [Kr] 5s^2 4d^10 5p^6. Thus, when iodine gains one electron, it forms an ion with an electron configuration similar to xenon.
Therefore, the ion formed by iodine (I) resembles the electron configuration of xenon (Xe), so the correct answer is c. Xe.