10. Which element has 2 valence electrons in its outermost energy level?
a. Cesium
b. Magnesi...
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Answer from: Quest
Distance^2= yellow line ^2 (see picture) = 30^2 + 49^2so distance = squareroot of (300^2 +49^2)i dont know if this is how to solve it, but i cnt think of another way
Answer from: Quest
Iknow the first part it is the average star i am not 100% sure
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