Barium
Here you can see a piece of barium that weighs approx. 1 gram and consists of about 4.4 trilliards atoms. How heavy, do you think, 10 barium atoms are?
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Here you can see a piece of barium that weighs approx. 1 gram and consists of about 4.4 trilliards atoms. How heavy, do you think, 10 barium atoms are?