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Author Question: Lead has 4 stable isotopes with masses of 203.973 (1.48%), 205.9745 (23.6%), 206.9759, and 207.9766 ... (Read 61 times)

Collmarie

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on: Jul 8, 2021

Question 1

Iodine is a member of the family called ________.
◦ metals
◦ metalloids
◦ noble gasses
◦ halogens
◦ actinides

Question 2

Lead has 4 stable isotopes with masses of 203.973 (1.48%), 205.9745 (23.6%), 206.9759, and 207.9766 respectively. What are the percentages of the last two isotopes?
◦ 77% and 23%
◦ 50% and 50%
◦ 37% and 38%
◦ 64% and 11%
◦ 24% and 50%
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by Collmarie on Jul 8, 2021

Kdiggy

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Reply #1 on: Jul 8, 2021
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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Collmarie

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Reply 2 on: Jul 8, 2021
Thanks for the timely response, appreciate it

diana chang

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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