Chadwick did!
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Answer:
B
Explanation:
The component carbon (C) has an nuclear number of 6, which suggests that all impartial carbon particles contain 6 protons and 6 electrons. In a commonplace test of carbon-containing fabric, 98.89% of the carbon particles too contain 6 neutrons, so each encompasses a mass number of 12.
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Can i have brain too pls!!!
After World War I, senators who opposed United <span>States participation in the League of Nations argued that American membership in the organization would "</span><span>(4) involve the nation in future world conflicts"</span>
