A because the nucleus is the entire bunch of protons and neutrons
Answer from: Quest
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Answer from: Quest
Use the formula: (n-2)ร180, where n is the number of sides(18-2)ร180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800รท18=160
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Which thirteenth century group invaded russia, leveling cities and massacring whole populations?