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Mathematics, 28.09.2019 11:00 palomaresmitchelle

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the diameter of a hydrogen atom is about 5×10^-15 meter. suppose 8.4×10^8 hydrogen atoms were arranged side by side in a straight line. multiply these numbers to find the length of this line of atoms. what is the length in scientific notation?

select one:

a. 4.2×10^−2 meter
b. 0.042 meter
c. 42×10^−3 meter
d. 4.2×10^−3meter

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