Well a basic explanation is that some elements have enough electrons to be considered stable. These elements do not need to react with other elements to gain more electrons. Reactive elements are no where near stable; they respond with other elements in order to become stable. The more unstable, the harsher the reaction is.
55 meters. If she started at 10 meters and ran 45 more, 10+45=55.
Answer:
D) 8
Explanation:
Due to the octet rule the most stable atoms will have 8 valence electrons.
Non metals are all the way on the right side
Metalloids are the stair case
Metals are on the left side