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.
1 Dimitri Mendeleev was probably the greatest scientist produced by Russia. ... 2 the periodic table was developed by Mendeleev, as well as five other scientists, over a period of about 10 years, after the Italian chemist Cannizzaro had published a consistent set of atomic weights in 1860.he elements tellurium and iodine occurred in the wrong order on the basis of their atomic weight Mendeleev's 1869 Periodic Table. 1  Mendeleev noticed that there were regular repeating patterns and similarities between different elements when they were ordered in terms of their atomic weights.