Gallium is a metal in Group 13 of the Periodic Table. There are two stable isotopes of gallium, $$\({ }^{69} \mathrm{Ga}\)$$ and $$\({ }^{71} \mathrm{Ga}\)$$. State what further information is needed to calculate the relative atomic mass of gallium. ...................................................................................................................................
Exam No：9701_s20_qp_21 Year：2020 Question No：1(a)(ii)
Answer:
the relative abundance / \(\%\) abundance of (each) the isotopes.
Knowledge points:
22.2.2 calculate the relative atomic mass of an element given the relative abundances of its isotopes, or its mass spectrum
Solution:
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