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.
As noted above, the circumference of a circle is the length of the line around the edge of the circle. A circle's circumference, c, is equal to twice its radius, r, times Ï. To calculate circumference, then, you multiply the circle's radius by 6.28. Take a circle with a radius of 4 inches.