b) The mass of 205TI is about 204.9744 amu. Why then does the periodic chart have anatomic weight of thallium that is different from 204.9744 amu?

It is given that mass of 205 Tl = 204.9744 amu. But this do not match with molar mass of Tl which…

Answered: b) The mass of 205TI is about 204.9744…

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter2: Atoms And Molecules

Section: Chapter Questions

Problem 2.16PAE

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b) The mass of 205TI is about 204.9744 amu. Why then does the periodic chart have an atomic weight of thallium that is different from 204.9744 amu?