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In this lesson, we will learn how to describe and explain trends in reactivity across periods and down groups in the periodic table.
Nitrogen is similar to carbon and oxygen (adjacent 2nd row elements) in what unique way?
Group II metals show differing reactivity with water, depending on their position within the Periodic Table. Explain the trend in reactivity between beryllium and barium.
Complete the sentence: It is safer to inflate balloons with helium than hydrogen because helium displays a higher
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