➤ Affects the metabolism of Mg and P in bone tissue, carcinogenic and allergic effects, and is an interchangeable element of Mg in enzymes;

➤ Inhibits phosphatase activity; changes the structure of protein molecules.

➤ Berylliosis - Beryllium intoxication. It causes respiratory tract damage: pulmonary hydropertrophy, damage to the walls of the lung sacs, beryllium bronchitis, and dermatological diseases, such as beryllium dermatitis and eczema.

➤ As a result of P displacement from bone tissue and formation of soluble beryllium phosphate, beryllium rickets begins to develop.

➤ Weakening of bones as a result of the excretion of soluble beryllium phosphate from the body, bone tissue weakens.

-

➤ Beryllium metal plates are highly transmissive to X-rays, which is why they are used in X-ray studies, electrocardiography, and nuclear medicine.

➤ Beryllium alloys are used to manufacture surgical instruments, which are characterized by strong structural resistance to corrosion

➤ Beryllium powder can be used to relieve toothache and cephalgia.

➤ Causes acute berylliosis with respiratory irritation, pulmonary extrusion, and asphyxiation.

➤ Antidote: alkaline inhalation, antihistamines, oxygen therapy.

➤ Mendeleev proved that Be is a divalent element.

➤ Beryllium can provide rocket fuel with maximum ideal impulse; airplanes that are twice as light; a spring that can withstand up to 20 billion cycles; the basis of "neutron guns."