Pulmonary arterial hypertension is a rare but severe disease with an estimated five-year survival rate of only 57% after diagnosis, according to the Registry to Evaluate Early And Long-term PAH disease management (REVEAL), which registers data from patients in the United States.
Concentration of elements in the ocean relative to the total concentration in the bulk silicate Earth (BSE). Of all the elements, only Cl and Br have a significant fraction in the ocean (see inset), indicating the extreme hydrophilic character for the heavier halogens.
Jul 4, 2014. The valence electron configuration for chlorine is #s^2 p^5#. Chlorine has an electron configuration of #1s^2 2s^2 2p^6, 3s^2 3p^5#. Chlorine is found in the group 17, the halogens on the periodic table. Chlorine is in the 3rd energy level, (3rd row) and 5th column of the 'p' block #3p^5#.