Interpretation:
The correct electron-dot structure for indium needs to be drawn.
Concept introduction:
Electron dot diagram or Lewis electron dot diagram is a representation of valence electrons of an atom that uses dots (valence electrons) around the

Answer to Problem 2STP
The correct option is C.
Explanation of Solution
The valence electrons of the elements are equal to their group number. Indium is an element of a third group. Therefore, the valence electrons of indium are three. Hence, the electron-dot structure for indium is as follows:
Therefore, the correct option is C.
The electron-dot structure for indium is as follows:
Therefore, the correct option is C.
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