Which proportion is correct for boron isomers? (A) ¹⁰B 20% (B) ¹¹B 20% (C) ¹¹B 40% (D) ¹⁰B 80%

Which proportion is correct for boron isomers? (A) ¹⁰B 20% (B) ¹

1.	Which proportion is correct for boron isomers? (A) ¹⁰B 20% (B) ¹¹B 20% (C) ¹¹B 40% (D) ¹⁰B 80%
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