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physical science

Marie discovers boxes of elements in a storage room. The boxes do not say which elements they contain, but they do have information about their locations on the periodic table. What kind of information would allow Marie to determine which boxes contain the most reactive elements?

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Anonymous

  1. From Internet:

    Group 1 is the most reactive and contains the most reactive elements. The group 1 elements are placed in the vertical column on the left hand side of the periodic table. Lithium, sodium and potassium are the three group 1 elements you are likely to see at school.

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    PsyDAG

  2. The elements in a Periodic Table are grouped according to their classifications. The major classifications are Metals, Non-metals, and Metalloids. Their level of reactivity can be gauged by simply looking at their position in the table. For Metals, their reactivity increases as you move to the left then going down. Non-metal reactivity increases as you move to the right then going up, starting at the bottom of the table.

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    the right answer

  4. The reactivity of metals increases as you move left in a period and as you move down in a group, so Marie needs to know the period and group of the element inside each box. Boxes that show locations in groups 1 or 2 or in period 7 contain the most reactive elements.

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    Harvey

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