Question

examine the lewis dot structure for potassium iodide. why are there 8 dots around the symbol for iodine (i)? select two correct answers. each dot represents an ionic bond, of which there are 8 in potassium iodide. each dot represents the number of protons in the nucleus of both atoms. the valence electrons from potassium combine with those for iodine, adding up to 8. each dot represents a covalent bond, of which there are 8 in potassium iodide. eight electrons is the maximum to fill the outer shell for this compound.

Explanation:

• In Lewis dot structures, dots represent valence electrons. Potassium (K) donates its one valence electron to iodine (I). Iodine needs one more electron to complete its octet (8 - electron outer shell). The 8 dots around iodine represent its valence electrons (after accepting the electron from K) to fill the outer shell (octet rule).

Answer:

• The valence electrons from potassium combine with those for iodine, adding up to 8.
• Eight electrons is the maximum to fill the outer shell for this compound.