Hydroxy compounds, Rules for calculating the oxidation numbers
The oxygenated acids ( acids contain oxygen ) and bases are considered as hydroxy compounds , They can be represented by the general formula ( MOH ) , where M is the element atom...
Tagged: The elements
Evolution concept of the atomic structure , Atomic theory & Properties of cathode rays
Long time ago man was asking about the nature of matter and its structure , while the trials done by the scientists to answer this question across different eras , the concept of the...
The mole , Mass of substance & Avogadro’s number
The mole Mole is the unit of the quality of matter in the International System of Units ( SI ) and it is defined by different ways according to the mole and mass of...
Radioactivity and the peaceful uses of nuclear energy
The nuclear energy All the elements consist of atoms, The atom consists of a nucleus surrounded by the electrons revolving around it in certain energy levels, The atom mass is concentrated in the nucleus that contains...
The ammeter and measuring the electric current intensity
The electric energy is the cleanest source of energy as it does not pollute the environment, The electricity plays the important role in the daily life , It is used to light up our houses ,...
What are the types and properties of salts?
Salts are ionic compounds that result from the neutralization reaction of an acid and a base, they are composed due to the combination of a positive ion (or a positive atomic group) with a negative...
