A vertical column in the periodic table. Members of a group typically have similar properties and electron configurations in their outer shell. Period. A horizontal row in the periodic table. The atomic number of each element increases by one, reading from left to right.
circumference - the length of the closed curve of a circle. length - the linear extent in space from one end to the other; the longest dimension of something that is fixed in place; the length of the table was 5 feet. sextant - a unit of angular distance equal to 60 degrees.
CIRCUMFERENCE #9 Circumference is the perimeter of a circle, that is, the distance around the circle. d = diameter C = Ïd or C = 2 Ïr r = radius ! 3.14 Example 1 Find the circumference of a circle with a diameter of 15 inches.