Chemistry
Which of the following is a pair of metalloids ?
- Na and Mg
- B and Si
- C and P
- He and Ar
Elements, Compounds & Mixtures
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Answer
B and Si
Reason — Na (Sodium) and Mg (Magnesium) are both metals. B (Boron) and Si (Silicon) are both metalloids. C (Carbon) and P (Phosphorus) are both nonmetals. He (Helium) and Ar (Argon) belong to the noble gas group.
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