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Author Question: Which one of the following combinations of neutrons/protons results in the lowest number of ... (Read 54 times)

tfester

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on: Feb 15, 2020

Question 1

Which one of the following statements about isotopes is false?
◦ All isotopes beyond 209Bi are radioactive.
◦ Nonradioactive isotopes generally have an odd number of neutrons.
◦ The ratio of neutrons to protons is > 1:1 for elements heavier than Ca.
◦ The ratio of neutrons to protons is about 1:1 for elements lighter than Ca.

Question 2

Which one of the following combinations of neutrons/protons results in the lowest number of nonradioactive (stable) isotopes?
◦ even number protons/odd number neutrons
◦ odd number protons/even number neutrons
◦ odd number protons/odd number neutrons
◦ even number protons/even number neutrons
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by tfester on Feb 15, 2020

jamesnevil303

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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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tfester

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Reply 2 on: Feb 15, 2020
Thanks for the timely response, appreciate it

marict

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Reply 3 on: Yesterday
Excellent

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