This page describes an assortment of reactions of the halogens which don't fit tidily in other pages in this section. All the reactions of the halogens described are redox reactions. Reactions with hydrogen. This shows the fall in reactivity of the halogens as you go down Group 7.Fluorine combines explosively with hydrogen even in the cold and dark to give hydrogen fluoride gas.he tendency to form the ion with the halogen in the +5 oxidation state increases rapidly as you go down the Group. Bromine and sodium hydroxide solution. With bromine, the formation of the sodium bromate(V) happens at a much lower temperature, down to room temperature.
The list of signs and symptoms mentioned in various sources for Secondary hyperparathyroidism includes the 21 symptoms listed below: 1  Asymptomatic in mild cases. 2  Bone pain. 3  Joint pain.  Deformed limbs.
Hyperparathyroidism can cause fatigue and weakness, increased thirst, impaired thinking, and bone fractures. Iron poisoning. Iron poisoning causes abdominal pain, vomiting, diarrhea, lethargy, and dehydration. Depression (Child and Adolescent) Depression is a painful sadness that interferes with a child's schoolwork, family life, and social activities.