Question

1. choose the best answer. how many valence electrons does iodine have? image of iodine’s electron shell structure options: 32, 53, 5, 7

Explanation:

Step1: Recall iodine's group

Iodine (I) is in Group 17 (halogens) of the periodic table.

Step2: Determine valence electrons

Group 17 elements have 7 valence electrons (valence electrons = group number for main - group elements, and Group 17 has 7 valence electrons). Also, from the electron - dot structure or electron configuration, iodine has an electron configuration that results in 7 valence electrons. The options 32 is a sub - shell electron count, 53 is the atomic number (total electrons in neutral atom), and 5 is incorrect. So iodine has 7 valence electrons.

Answer:

7 (corresponding to the option with 7)