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(1) What is the symbol of category transition metal?

(2) What is the symbol of category noble gas?

(3) What is the symbol of category alkaline earth metal?

(4) What is the symbol of category transition metal?

(5) What is the symbol of category metalloid?

(6) What is the symbol of category diatomic nonmetal?

(7) What is the symbol of category polyatomic nonmetal?

(8) What is the symbol of category noble gas?

(9) What is the symbol of category diatomic nonmetal?

(10) What is the symbol of category diatomic nonmetal?