For example, tellurium comes before iodine in the periodic table, even though its atomic mass is slightly greater.
2
他看到，如果你将氯的原子质量，加上碘的原子质量，除以，得到的数将与，溴的原子质量很接近。
He saw that if you take the atomic mass of chlorine, 2 add it to the atomic mass of iodine, divide by two, you get something that is really close to the atomic mass of bromine.
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