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.
If a circle has a diameter of 4, its circumference is 3.14*4=12.56 If you know the radius, the diameter is twice as large. Calculating the Circumference of a Circle. The circumference of a circle is the distance around the outside of the circle.