Patients who waited more than 6 months to receive cataract surgery experienced more vision loss, a reduced quality of life and had an increased rate of falls compared with patients who had wait times of less than 6 weeks.
The chalcogens, the oxygen group, is located in column 16 of the periodic table. It contains the elements oxygen, sulfur, selenium, tellurium, polonium, and ununhexium (O, S, Se, Te, Po, and Uuh, respectively). These elements all contain six valence electrons and form 2- ions.
Quick Answer. The element nitrogen belongs to the nitrogen family, which is situated in the p-block in group 15 on the periodic table of elements. The elements arsenic, bismuth, antimony and phosphorus also belong to the same group because they share the same electron configuration and follow the general periodic trends. Keep Learning.