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atomic radius of Cu is 140 pm. How many Cu atoms can be lined up across a penny that is 1.85 cm in diameter?

thanks

2007-08-27 11:12:19 · 1 answers · asked by Katrin 1 in Science & Mathematics ➔ Chemistry

1 answers

a pm=1x10-10 cm so divide 18500000000 pm by (2x140 pm ) and bingo!

2007-08-27 11:22:31 · answer #1 · answered by Manuelon 4 · 0⤊ 0⤋

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