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 may occur because of a problem with the parathyroid glands themselves (primary hyperparathyroidism) or because of another disease that affects the glands' function (secondary hyperparathyroidism). Primary hyperparathyroidism. Primary hyperparathyroidism occurs because of some problem with one or more of the four parathyroid glands: A noncancerous growth (adenoma) on a gland is the most common cause. Enlargement (hyperplasia) of two or more parathyroid glands accounts for most other cases. A cancerous (malignant) tumor is a rare cause of primary hyperparathyroidism.