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Questions and Answers
Which element is a colorless gas and very non-reactive chemically?
Which element is a colorless gas and very non-reactive chemically?
Which element is a grey metal, much harder than lithium, and fairly reactive chemically?
Which element is a grey metal, much harder than lithium, and fairly reactive chemically?
Which element reacts readily with oxygen to form H2O and forms HCl with chlorine?
Which element reacts readily with oxygen to form H2O and forms HCl with chlorine?
Which element is a yellow or brown non-metal, very hard, and not very reactive?
Which element is a yellow or brown non-metal, very hard, and not very reactive?
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Which element is black, brittle, and non-reactive at room temperature?
Which element is black, brittle, and non-reactive at room temperature?
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