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Author Question: How many protons (p) and neutrons (n) are in an atom of Sr? (Read 47 times)

panfilo

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Question 1

How many protons (p) and neutrons (n) are in an atom of barium-130?
◦ 56 p, 74 n
◦ 56 p, 130 n
◦ 74 p, 56 n
◦ 130 p, 56 n

Question 2

How many protons (p) and neutrons (n) are in an atom of Sr?
◦ 38 p, 52 n
◦ 38 p, 90 n
◦ 52 p, 38 n
◦ 90 p, 38 n


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Marked as best answer by panfilo on Jul 8, 2021

nathang24

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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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panfilo

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Reply 2 on: Jul 8, 2021
Excellent


duy1981999

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

 

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