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Chemistry
Chemistry
Problem
In which of the following pairs of molecules/ions, both the species are not likely to exist? a.
H
2
2
+
\text{H}_2^{2+}
H
2
2
+
,
He
2
\text{He}_2
He
2
b.
H
2
−
\text{H}_2^-
H
2
−
,
He
2
2
+
\text{He}_2^{2+}
He
2
2
+
c.
H
2
+
\text{H}_2^+
H
2
+
,
He
2
2
−
\text{He}_2^{2-}
He
2
2
−
d.
H
2
−
\text{H}_2^-
H
2
−
,
He
2
2
−
\text{He}_2^{2-}
He
2
2
−
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