How many valence electrons does Kr have? Chemistry The Periodic Table Valence Electrons 1 Answer shr Oct 30, 2016 8 valence electrons. Explanation: Since #Kr# or Krypton is a noble gas, it has a full valence shell or octet of 8 electrons. If this helped, leave a like :). Answer link Related questions How do valence electrons affect chemical bonding? How do valence electrons determine chemical properties? How do valence electrons determine chemical reactivity? How many valence electrons are in a silicon atom? How many valence electrons are in an atom of chlorine? How many valence electrons are in an atom of magnesium? How many valence electrons are in an atom of phosphorus? How many valence electrons are in an atom of bromine? How many valence electrons are in carbon? Why are valence electrons responsible for the behavior of the atom? See all questions in Valence Electrons Impact of this question 17124 views around the world You can reuse this answer Creative Commons License