What is the electron configuration of the iodide ion? A. 1s22s22p63s23p63d104s24p64d105s2

B. 1s22s22p63s23p63d104s24p6

C. 1s22s22p63s23p63d104s24p64d10

D. 1s22s22p63s23p63d104s24p64d105s25p6

Please try and put the answer first and then give an explanation.

D. 1s2,2s2,2p6,3s2,3p6,3d10,4s2,4p6,4d10,5s2,5p6

Explanation:

Hello!

In this case, since the standard iodine atom has 53 electrons, when it forms the iodide ion it is known it gains one spare electron so now it has 54; it means we need to write the new electron configuration up to 54 as shown below:

Thus, the answer should be:

D. 1s2,2s2,2p6,3s2,3p6,3d10,4s2,4p6,4d10,5s2,5p6

Even when the order is not the adequate one.

Regards!

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.