Answer:
The correct electron dot diagram for krypton (Kr) is:
Kr.
Step-by-step explanation:
In an electron dot diagram, the chemical symbol is surrounded by dots representing the valence electrons of the element. Krypton is in Group 18 of the periodic table, which means it has 8 valence electrons. Therefore, the electron dot diagram for krypton consists of a "Kr" symbol with 8 dots around it, representing its 8 valence electrons.