Question: Boron has two stable isotopes, ¹⁰B (19%) and ¹¹B (81%). The atomic mass that should appear for boron in the periodic table is [CBSE PMT 1990]
(a) 10.8
(b) 10.2
(c) 11.2
(d) 10.0
Correct Answer: (a) 10.8
Question: Boron has two stable isotopes, ¹⁰B (19%) and ¹¹B (81%). The atomic mass that should appear for boron in the periodic table is [CBSE PMT 1990]
(a) 10.8
(b) 10.2
(c) 11.2
(d) 10.0
Correct Answer: (a) 10.8
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