교과서 질문
Identify the three elements indicated on the periodic table, and give the group that they are in.
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검증된 단계별 안내
Identify the three elements indicated on the periodic table, and give the group that they are in.
Is the red element on the following periodic table likely to be a gas, a liquid, or a solid?
What is the atomic number of the blue element?
What is the group number of the green, blue, and red elements?
Classify these elements as metals, nonmetals, or semimetals.