Therefore, the properties vary and the factors established were all necessary for the understanding

Download
Are those that grow and decrease in intensity with increasing atomic number, ie, how elements are organized according to their periodic properties, it is known that insofar as the atomic number increases, the elements assume increasing values or decreasing in each period, reaching maximum and minimum values in well-defined columns of the periodic table, and then called periodic properties.
We talked a bit about the definition of periodic properties that are characteristics or tendencies 12 volt heaters for cars that certain chemicals can reveal according to its position in the periodic table, now let's look at a few that stand out:
Because it is difficult to measure the radius of an atom because its clouds of electros are not well defined 12 volt heaters for cars is that you must use to facilitate this measure X the distance between two neighboring nuclei rays, and say that the atomic radius is half that distance. The atomic radius generally increases with time and decreases with increasing group number. The greater the period of the greatest distance element is the last electron to the core. Thus this electron is more "loose", increasing the size of the radius. Electrons are being aggregated 12 volt heaters for cars in the same sublevels in which the electrons are already present. With the increase in the attraction core charge on the electrons tended to be higher (atomic radius occurs in the periodic table top to bottom 12 volt heaters for cars on the left side of the table in the vertical and right-to-left 12 volt heaters for cars horizontal).
It is the tendency of an atom has to receive electrons at a chemical bond, then it may be concluded that the electronegativity 12 volt heaters for cars of a single atom can not be calculated. This is an arbitrary scale that represents the strength of the atom to attract electrons. The scale of Pauling, the oldest, came from consideration of the energies needed to break chemical bonds in molecules. This increases with decreasing atomic size, both for the same period as elements to the same group. It should be noted also that the electronegativity increases with increasing number of valence 12 volt heaters for cars electrons for the metals of Group I, II and III (in the periodic table electronegativity increases from left to right and from bottom to top on the right) .
It is the amount of energy released by an atom in the gaseous state, the electron gain. Atoms with high electron affinity tend to gain one or more electrons, 12 volt heaters for cars acquiring stability, ie, the electron configuration of the noble gases. When a neutral atom gains an electron, it becomes a monovalent 12 volt heaters for cars anion. In periods, the electronegativity increases as the atomic 12 volt heaters for cars number increases, whereas in families, eletroafinidade increases as the atomic number decreases. Porting, the smaller the size of the atom, the greater its electron affinity. The noble gases are excluded from this property because they do not tend to gain electrons.
is the tendency to lose electrons by an atom. The greater its value, the greater the metallic character. Atoms with fewer than four valence electrons, metals generally have a greater tendency to lose electrons logo, have high eletropositivade. An increase in the number of layers decreases the attractive force on the peripheral core electrons, facilitating the loss of electrons by the atom, and hence increasing their eletropositividade. The noble gases are excluded as they do not tend to lose electrons.
Atomic volume is the volume occupied by a mole of atoms of an element, in solid form. One mole of atoms has 6,02X10 ^ 23 atoms. This value is fixed and is known as Avogadro's number. We can also say that: 1 mol of molecules has 6,02X10 ^ 23 molecules 1 mol of ions possess 6,02X10 ^ 23 ions. The atomic volume also depends on the spacing between atoms. The atomic volume varies with the atomic radius, except the center of the table to the right where a greater spacing between the atoms occurs. 12 volt heaters for cars
Therefore, the properties vary and the factors established were all necessary for the understanding of known properties, the periodic table as a major factor where their property is the same across studies may highlight the following periodic properties: atomic radius, electronegativity, eletropositividade, melting point, boiling point, density, atomic volume, and etc ...
Periodic properties of the chemical elements
The sixth edition of the classic Physics for Scientists and Engineers introduces a new ...