Question

In which scenario given, will the electrons have the highest energy?

electrons in the outer shell of oxygen
electrons in the outer shell of carbon
electrons in the outer shell of nitrogen
electrons in the outer shell of potassium
electrons in the outer shell of sulfur
electrons in the outer shell of helium

Answer 1

answer: potassium

if you're referring to the element with the highest reactivity in this set, it would be potassium! potassium is highly reactive because it will give away its singular valence electron to another element that would like it to become balanced.