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Author Question: All elements with atomic number 83 or greater are radioactive. (Read 57 times)

james9437

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on: Mar 24, 2020

Question 1

Isotopes always have the same mass number.
◦ true
◦ false

Question 2

All elements with atomic number 83 or greater are radioactive.
◦ true
◦ false
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Marked as best answer by james9437 on Mar 24, 2020

ktidd

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Reply #1 on: Mar 24, 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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james9437

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Reply 2 on: Mar 24, 2020
Gracias!

nanny

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Reply 3 on: Yesterday
Excellent

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