Mixture & Compound

The compound is the substance that can be two or more elements that can be changed. Water is a compound. It contains both Hydrogen and oxygen that can stand alone by itself. The mixture is when two different substances that are blended together. The air is a mixture of these elements carbon dioxide, nitrogen, and other stuff. Most mixtures are known to be naturally. The main difference between the compound and the mixture is how they are combined. In the pure substance, the only way to know if it is an element or compound, is by studying the actually elements and compound that is made from. Elements cannot be broken down into individually pieces. Most elements are in the simplified forms but not in the purified form. The element is the same through the stages of liquid, solid and gaseous states. For example like gold. Gold is gold when it is heated. Gold is gold when it turns liquid. And gold is a single solid element. The ionic bonds have an attraction between opposite charged ions by one atom, a metal makes a contribution of an electron and becomes a optimistic ion, and when another, a nonmetal received an electron and becomes pessimistic ion. Metal donate electrons and non-metals receives electrons. For example is Na is positive and CL is negative. The covalent bonds share the electrons and they are normally nonpolar. The covalent bonding does not donate or gain electrons such as CH4. The ionic compounds tend to have eight electrons to keep in the highest energy level. The metals in group one all has one valence electron and in order to have eight and it is easier to lose one valence electron that to try to gain seven valence electrons. Then that electron becomes a noble gas and will satisfy the eight. The elements in table one has one positive charge in their ionic state. The alkaline earth metals which are the group two has two valence electrons and they lose their two and end up as a noble gas and also have an ionic state of two positive charges. The third group has three valences. Once again it easier to give up the three valances to become a noble gas. Therefore they will have three positive charges. The group six has 6 valences electrons and it is easier to gain two valences instead of losing six valences. When they gain the two valences they are now a ionic charge negative two. Group seven is the same as in taking one valances instead of giving up seven which gives them a ionic of a negative one. The example that of a nonmetal that is from group one is potassium and has an ionic charge of one positive. Then taking and matching it with a metal from group seven that has a one negative. That means that the two paired up will equal a neutral charge and become KI which is potassium iodide. Another example is Lithium which is also from the group one elements and has a one positive charge with nitrogen from group five and has a three negative charge. The reality is that they do not add up to zero. The atom’s charge becomes the original atoms subscript and becomes the formula Li3N, known as lithium nitride. There are three lithium atoms to equal the overall molecule to be neutral. The two atoms bond by distributing some of the external electrons, which creates a covalent bond. To create a covalent bond, the two atoms join up of electrons. The one in the group one have the one electron and are easier to share with the other one in the same group. Each atom becomes perpetual; for the reason that the covalent bond has effective way of making them available for each atom with one more electron in its external shell. An example is that four electrons have been used in structuring the two bonds; four elements remain to be disseminated. Hydrogen is content with two electrons, but oxygen requirements are eight electrons to have a noble gas configuration. So the last four electrons are added to the oxygen. This in turns create a structure for water. Another example is using carbon and nitrogen which both has four element valences. So they share each others to achieve a noble gas known as CNˉ cyanide ion.