英语俚语“average atomic mass”的翻译、释义、用法及例句-英语俚语辞典

俚语	average atomic mass
释义	average atomic mass The weighted average of the atmoic masses of the naturally occuring isotopes of an element. Suppose you had a box of marbles that contain 2 sizes of marbles. If 25% of the marbles have the massses of 2.00g each and 75% have the masses of 3.00g each then the average atomic mass would look like this. (25 marbles x 2.00g = 50g)+(75 marbles x 3.00g = 225g) = 275g / 100 = (an average atomic mass of) 2.75g.
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