|
Molecular formula :
MW :
CAS :
nature : metal element consisting of single quality. The general nature of the following : (a) at room temperature in addition to mercury is liquid, solid; (2) having a metal lattice (from the bonding); (3) with a metallic sheen (reflective) and opaque, the majority were white; (4) mostly, ductility and stretchability, by rolling, hammering and handle made of the various models or equipment; (5) have excellent thermal conductivity and electrical conductivity; (6) general greater density. The minority share of less than 5, known as light metals, such as sodium, calcium, magnesium and aluminum. Most of the more than the five, known as heavy metals, such as gold, silver, copper and iron. The crystal structure of metals, neutral atoms, cationic and free electronic activities. The ductile metal, stretchability, thermal conductivity and electrical conductivity, with the presence of free electrons on. Chemical properties of metals mainly manifested in its atoms can lose their electronic form cation, which can easily combine with other non-metallic. The lively acid and metal can happen replacement role. The most lively of metal, such as sodium, potassium, etc., but also with water at room temperature, hydrogen replacement. Metal generally can be divided into black and non-ferrous metal two categories. Between metal and non-metallic, and sometimes it is difficult to draw boundaries. Some metals such as arsenic, aluminum, etc., often as a semi-metal. Some non-metallic such as arsenic, tellurium, according to their chemical properties, can be classified as metal, said it is the semi-metal or metal.
Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data". |
Home Products Search Properties Search 中文版