The structure of Beryllium is hexagonal close-packed, as illustrated in Figure 1-1. The chemical properties of beryllium nanoparticles are outlined in the following table. It is found in as many as 30 different minerals. Physico-chemical properties 10 1.2. Poison B for beryllium compounds. 1.2 Physical-chemical properties . Beryllium has but a single isotope, beryllium-9 which is not radioactive but beryllium-10, which cosmic rays produce in the upper atmosphere, is radioactive with a half-life of 1.5 million years. Beryllium has a very high specific heat, heat of fusion, sound conductance, and strength to-weight ratio. Chemical property Beryllium is a very reactive metal, which has a great affinity with oxygen and can react with oxygen at room temperature to produce a thin, protective oxide film on its surface. Beryllium Properties, History, and Applications Share Flipboard Email Print Science Picture Co. / Getty Images Science. Chemistry Chemistry In Everyday Life Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology … Beryllium is lighter than aluminum but is > 40% more rigid than steel. Classification and labelling status 11 ... Chemical name CAS Formula Beryllium 7440-41-7 Be Beryllium acetylide 506-66-1 CBe2 Beryllium carbonate (Basic beryllium carbonate (mixed salt) 66104-24-3 Be2CO3(OH)2 Beryllium carbonate 13106-47-3 BeCO3 Beryllium chloride 7787-47-5 BeCl2 Beryllium diammonium tetrafluoride 14874-86-3 BeF4N2H8 Beryllium … Beryllium is kinetically inert to oxygen and water because it forms an oxide film on its surface. Chemical Properties Reactivity with Air and Water. When the temperature is less than 600 degrees, the beryllium in dry air can be oxidized for a long time, is higher than 600 DEG C, the oxidation rate will gradually increase. Beryllium Compounds . Chemical Properties Chemical Properties. 2) Beryllium reacts with oxygen when exposed to air to form BeO (beryllium oxide) but it resists oxidation at a particular standard pressure and temperature. The beryllium oxides have rock salt structure, which shows that it is covalent in nature. Chemical Properties of Beryllium. Beryllium nanoparticles are graded as very toxic and should be handled with care. Beryllium content on earth’s crust is 2.6 ppm. However, powdered beryllium burns brilliantly, when it is ignited in air, and it gives beryllium oxide (BeO) and beryllium nitride (Be3N2). It is one of the most toxic elements, hence causes damage to human lungs and other organisms. Beryllium belongs to the alkaline earth metal category, s-block and period 2 of the periodic table. Compounds of beryllium have an exclusive oxidation state of +2. They have also been tested to be carcinogenic. 1) Beryllium on reacting with some acids or with water results in the formation of hydrogen gas. They cause skin and eye irritation, and could be fatal if inhaled.