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Periodic table of elements quiz: How many elements can you name in 10 minutes?In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, ...
At that time, he had only ... elements in group 1 are reactive metals, and all the elements in group 0 are unreactive non-metals. The zigzag, staircase, line in the diagram of the periodic table ...
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