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Author Question: The element antimony has an atomic weight of 121.757 amu and only two naturally-occurring isotopes. ... (Read 128 times)

clmills979

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on: Feb 15, 2020

Question 1

An element has two naturally occurring isotopes. One has an abundance of 37.4% and an isotopic mass of 184.953 amu, and the other has an abundance of 62.6% and a mass of 186.956 amu. What is the atomic weight of the element?
◦ 186.956 amu
◦ 185.702 amu
◦ 185.954 amu
◦ 186.207 amu

Question 2

The element antimony has an atomic weight of 121.757 amu and only two naturally-occurring isotopes. One isotope has an abundance of 57.3% and an isotopic mass of 120.904 amu. Based on these data, what is the mass of the other isotope?
◦ 121.757 amu
◦ 122.393 amu
◦ 122.902 amu
◦ 122.610 amu
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by clmills979 on Feb 15, 2020

djpooyouma

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Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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clmills979

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Reply 2 on: Feb 15, 2020
:D TYSM

kjohnson

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Reply 3 on: Yesterday
Gracias!

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