| 41. | The same problem may occur with atomic weight based definitions.
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| 42. | In practice, only 11 of the mononuclidic elements are used in standard atomic weight metrology.
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| 43. | But his exact position on atomic weight is disputed.
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| 44. | The atomic weight of an atom minus it's atomic number is the number of neutrons.
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| 45. | Atomic mass figures are thus commonly reported to many more significant figures than atomic weights.
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| 46. | The date was chosen in recognition of the atomic weight of hydrogen ( 1.008 ).
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| 47. | These isotopes can have different atomic weights, depending upon the number of neutrons in the nucleus.
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| 48. | Claus managed not only to isolate ruthenium, but also determine its atomic weight and chemical properties.
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| 49. | His measurements showed that the two samples had different atomic weights, supporting the concepts of isotopes.
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| 50. | Isotopes are atoms of the same element that have similar chemical properties but different atomic weights.
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