Plutonium Appearance & Characteristics. Radioactive and toxic. Plutonium is a silvery radioactive metal that tarnishes in air to give a yellow oxide coating. It has six allotropic forms, which vary widely in crystal structure and density. The metal is chemically reactive, forming compounds with the halogens, carbon, nitrogen, and silicon.
Rickets is a condition that affects bone development in children. It causes the bones to become soft and can lead to bone deformities. It is often characterised by an appearance of bowed legs. In adults, it is known as osteomalacia or soft bones.
As most cases of rickets are caused by a vitamin D and calcium deficiency, it's usually treated by increasing a child's intake of vitamin D and calcium. As most cases of rickets are caused by a vitamin D and calcium deficiency, it's usually treated by increasing a child's intake of vitamin D and calcium.