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1. |
Study the given mass spectrum of magnesium carefully. The number of protons in \[^{\text{26}}\text{Mg}\], number of neutrons in \[^{\text{25}}\text{Mg}\], and the relative atomic mass of Mg are respectively |
A. | 12, 13 and 25 |
B. | 16, 12 and 24 |
C. | 14, 13 and 25 |
D. | 12, 13 and 24.32 |
Answer» E. | |