Dropping Color

Earlier this week in my Chemistry class we drew five circles and try to drop markers in the circle. We dropped the total of a hundred times. I got the markers in each circle within 30 tries. After we measured the measure of area of the circle. The whole point was to see how many times we can hit the circle with the marker because the area of the circle is not that big.

Elements

Yesterday, i learned that the metal are on the left side of the periodic table and the non metals are in the top left. From top to bottom the elements have less atomic number and mass to more atomic number and mass. The left of the elements are more reactive than the right side. Also the left has less valence electrons than the right.