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This element is a grayish-white, lustrous, brittle metalloid. Although germanium is a poor conductor of electricity, it is often doped with other elements. Germanium is most important as a semiconductor material.

Boron has several different forms but in a same element; Monomer Boron is also known as amorphous boron or element boron. Monomer-Boron is at the specific position on periodic table, which locates on a border between metal element and non-metal element. Monomer-Boron is a non-metal element, which has distinctive advantages such as strong electronegativity, small diameter of atom, concentrated nuclear charge, the nature of non-metal and similar to silicon.

Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre, and is a tetravalent metalloid and semiconductor.

The beryllium oxide, the chemical formula BeO, is amphoteric and can react with both acids and strong bases. BeO is a white powder with a very high melting point. Chemical Formula : BeO. Molecular Weight : 25.0116.