What are the types and properties of salts ?
The salts The salts are ionic compounds that result from the the neutralization reaction of an acid and a base , they are composed due to the combination of a positive ion ( or...
Tagged: The nonmetals
The electric conductivity of substances and life application on it
The electric conductivity The substances can be classified according to the electric conductivity into good conductors of electricity and bad conductors of electricity , The electrical conductivity is the ability of a material to...
How can you calculate the valency of each element ?
The valency The valency is the number of the electrons that an atom gains, loses or even shares during a chemical reaction, The valency is the number of electrons that an atom needs to gain...
What are the types of the covalent bond ?
The covalent bond The covalent bond is a bond occurred among the atoms of nonmetals through the particopation of each atom with the same number of electrons to complete the outer electron shell .
What is the ionic bond ?
The element is composed of the molecules , Each molecule consists of the atoms , The atom is electrically neutral in its ordinary state ( In the atom , the number of the electrons...
The attempts of the elements classification
The elements The scientists classified the elements according to their properties to facilitate their study and to find a relationship between the elements , and their chemical and physical properties .
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