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The lasers 0

The importance and medical uses of the laser beams

The laser The laser is a device that emits light through a process of optical amplification based on the stimulated emission of the electromagnetic radiation, The laser is highly coherent, It is monochromatic in...

The inert gases 0

The properties of the noble (inert) gases

The inert gases are the elements in which the outermost electron shells are completely filled with the electrons, so they don’t participate in any chemical combination in the ordinary conditions.

covalent bonds 0

What are the types of covalent bonds?

The covalent bond The covalent bond is a bond occurred among the atoms of nonmetals through the participation of each atom with the same number of electrons to complete the outer electron shell.