Senior Congregate Care. What is congregate housing? Congregate housing is an environment thatâs designed to cater for the housing needs of seniors and disabled persons. Residents of a congregate housing complex have private apartments but share a common dining room, kitchen facilities, and other amenities. The purpose of this arrangement is to allow seniors to continue living an independent life although assisted with such tasks like cooking.
The Russian chemist Dmitri Mendeleev was the first scientist to make a periodic table similar to the one used today. Mendeleev arranged the elements by atomic mass, corresponding to relative molar mass.
It was invented in russia by Dmitri Mendeleev he Periodic Table was invented and arranged by the Russian chemist  Dmitri Mendeleev (1834-1907).nswer for the Periodic TableThe periodic table of the chemical elements is a tabular method of displaying the chemical elements. Although precursors to this table exist, its â¦ invention is generally credited to Russian chemist Dmitri Mendeleev in 1869.