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Assertion: Boron is a nonmetal, whereas the other group 13 elements are metals.
Reason: Boron has a smaller atomic radius than the other group 13 elements.
Option: 1
Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
Option: 2
Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
Option: 3
Assertion is true, but Reason is false.
Option: 4
Assertion is false, but Reason is true.
Answers (1)
Boron is a non-metal because it does not exhibit metallic properties, whereas the other group 13 elements are metals. The smaller atomic radius of boron compared to the other group 13 elements is not the reason for this difference in properties.
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