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câu hỏi		câu trả lời
Where are metalloids found on the periodic table bắt đầu học		They are placed on the right side of the periodic table
Which elements are metalloids? List their symbols. bắt đầu học		B, Si, Ge, As, Sb, Te, Po
What are two uses for metalloids? bắt đầu học		are used in semiconductors and alloys
Where are noble gases found on the periodic table? bắt đầu học		Noble gases are located in Group 18
Which elements are classified as noble gases? List their symbols bắt đầu học		He, Ne, Ar, Kr, Xe, Rn
Which elements are classified as nonmetals? List their symbols. bắt đầu học		H, C, N, O, P, S, Se
What does the termin "halogen" mean? bắt đầu học		Halogens are elements that react with metals to from salts
Which elements are classified as halogens? List Their symbols. bắt đầu học		F, Cl, Br, I, At
Where do you find transition metals on the periodic table bắt đầu học		Transition metals are located in the center of the periodic table, in groups 3 to 12

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