Normal, functioning kidneys. 1  prevent the buildup of wastes and extra fluid in the body. 2  keep levels of electrolytes, such as potassium and phosphate, stable. 3  make hormones that help regulate blood pressure. 4  make red blood cells. 5  keep bones strong.
They lack only one electron to form a complete shell or subshell, and are extremely active chemically. Chemical activity increases as you move upward in the group, fluorine being the most active element in the Periodic Table. At room temperature, fluorine and chlorine are gases, bromine is liquid, and iodine is solid.They form diatomic molecules in the pure state. The halogens are poisonous, and chlorine gas and chlorine compounds have been used as chemical weapons.hey lack only one electron to form a complete shell or subshell, and are extremely active chemically. Chemical activity increases as you move upward in the group, fluorine being the most active element in the Periodic Table. At room temperature, fluorine and chlorine are gases, bromine is liquid, and iodine is solid.
Bromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Its properties are thus intermediate between those of chlorine and iodine. Isolated independently by two chemists, Carl Jacob LÃ¶wig and Antoine JÃ©rÃ´me Balard, its name was derived from the Ancient Greek Î²Ïá¿¶Î¼Î¿Ï, referencing its sharp and disagreeable smell. Elemental bromine ...