Procedure 1 fold the filter paper in half and then

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1. Fold the filter paper in half and then fold it again into quarters. Using the ruler, measure up 1.5 cm from the closed point of the paper and make a mark. Make a small hole in the bottom of the folded filter paper by cutting at the 1.5 –cm mark with the scissors. Insert the cut filter paper into the ring of the tripod ring stand to create a funnel with the small hole at the bottom. 2. Use the compass to draw a circle with a radius of 3 cm in the center of a large sheet of paper. Then draw four more concentric circles 3 cm apart, around the first circle. Number the rings 1-5, starting from the center. 3. Mark the center of the innermost circle with a large dot. Let this dot represent the nucleus of the atom. Place the ring stand so that the hole in the filter paper is exactly above the large dot, or nucleus, as shown in Figure 1.
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Christopher Reinemann
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