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Chemistry
Chemistry
Problem
The radius of the 2
nd
orbit of
Li
2
+
\text{Li}^{2+}
Li
2
+
is
x
x
x
. The expected radius of the 3
rd
orbit of
Be
3
+
\text{Be}^{3+}
Be
3
+
is [Main Jan. 25, 2023 (I)] (a)
9
4
x
\frac{9}{4}x
4
9
x
(b)
4
9
x
\frac{4}{9}x
9
4
x
(c)
27
16
x
\frac{27}{16}x
16
27
x
(d)
16
27
x
\frac{16}{27}x
27
16
x
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