Consider the following Statements:
Radon is the heaviest gas.
Astatine is the rarest element on the earth.
Graphite which is a non-metal is also an electrical conductor.
Which among the above Statement(s) is/are correct?
[A] Only 2
[B] 1 and 2
[C] 2 and 3
[D] 1, 2 and 3
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