Which is not a pure substance?
Ice cream
Carbon Dioxide
hydrogen
saltNaCI
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Ответ:
ice cream is not a pure substance
Ответ:
Electrons are indeed far away from the nucleus! If we could magnify the simplest hydrogen atom so that its nucleus (a proton) were the size of a basketball, then its lone electron would be found about 2 miles away. All of the space in between the electron and the basketball-size nucleus is empty!
Therefore, if the nucleus was the size of a golf ball, the electron would be roughly 300 meters away
Explanation: