The whole world is a combination of chemistry and physics and one of the greatest advances in history is to understand how atoms combine with each other to form compounds. In chemical bonding, there are two kinds of bonds, ionic bond and covalent bond. Ionic bonds are formed when the electrical attraction between two oppositely charged atoms or groups of atoms is called ions. Covalent bonds are formed when one or more electrons move from one atom to another. An atom shares an electron pair between them or moves one or more electrons from one atom to another.
A compound may be an atom bonded to one another in a molecule or crystal, wherein an atom, molecule or ion forms a crystal lattice. Compounds based mainly on carbon atoms and hydrogen atoms are called organic compounds, and all other compounds are called inorganic compounds. Compounds containing bonds between carbon and metals are called organometallic compounds. In organic chemistry various compounds with the same composition and molecular weight may be present. Usually these are called isomers. Isomers generally have significantly different chemistries and can generally be separated without spontaneous conversion to one another. Common examples are glucose and fructose. The former is aldehyde and the latter is ketone. Their interconversion requires enzymatic or acid-base catalysis
The whole world is a combination of chemistry and physics and one of the greatest advances in history is to understand how atoms combine with each other to form compounds. In chemical bonding, there are two kinds of bonds, ionic bond and covalent bond. Ionic bonds are formed when the electrical attraction between two oppositely charged atoms or groups of atoms is called ions. Covalent bonds are formed when one or more electrons move from one atom to another. - Nuclear power is a controversial problem for a while. Concerns about nuclear safety are major problems due to incidents such as Chernobyl, Sunri Island, and recent earthquake and tsunami caused by the Fukushima nuclear reactor in Japan. Due to the lack of information and education on radiation and its effects, there may be many such concerns.