1 Minimize the organic solid wastes (ie food) that are put down the kitchen drain. Follow with water to flush the pipes. 2  Do not put materials that cannot decompose down any drain.  Do not allow hair to go down the lavatory drain if possible â remove from the lavatory and dispose of in the trash.
The reason the periodic table is the shape that it is has to do with the electronic configurations of the elements. The periodic table is arranged so that all the elements in each period (row) have similar electronic configurations to the other elements in that period. That also often means that elements in the same group (column) show similar chemical reactivity. Electrons in atoms are arranged in different orbitals (named s, p, d, and âf).
(pÃ®râ²Ä-Ådâ²Ä­k) A table in which the chemical elements are arranged in order of increasing atomic number. Elements with similar properties are arranged in the same column (called a group), and elements with the same number of electron shells are arranged in the same row (called a period).