Spring Lake Township is a civil township of Ottawa County in the U.S. state of Michigan. The population was 13,140 at the 2000 census. The village of Spring Lake is located within the township. The city of Ferrysburg is south of the township bordering Lake Michigan, the Grand River and Spring Lake. On the south side of the Grand River is the city of Grand Haven and Grand Haven Charter Township. Crockery Township is to the east and Muskegon County is to the north. It was established in 1855.
The atomic number of an element is the same as the number of electrons or protons in that particular atom. In the periodic table the elements are arranged into periods and groups. A row of elements across the table is called a period. Each period has a number: from 1 to 7. Period 1 has only 2 elements in it: hydrogen and helium. Period 2 and Period 3 both have 8 elements.
The Periodic Table is an arrangement of the elements in order of atomic number. Columns in the table - groups. The elements in any one vertical column are said to be in the same group or family. Eight of the groups are numbered from left to right. Elements in the same group have similar chemical properties. The group number is the same as the number of electrons in the outer shell of all the elements in the group.