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Questions and Answers
Which element is the lightest among the first 30 elements of the periodic table?
Which element is the lightest among the first 30 elements of the periodic table?
Which element is the most abundant in the Earth's crust among the first 30 elements of the periodic table?
Which element is the most abundant in the Earth's crust among the first 30 elements of the periodic table?
Which element is a noble gas among the first 30 elements of the periodic table?
Which element is a noble gas among the first 30 elements of the periodic table?
