ionic radius of na

Ionic Radius - It is defined as the distance from the centre of the nucleus upto the last shell containing the electro..

It is defined as the distance from the centre of the nucleus upto the last shell containing the electron..

Being the first elements of each period, alkali metals have the largest atomic and ionic radii in their respective periods. As we move within a period, the atomic radius and ionic radius tend to decrease due to increase in the effective nuclear charge. On mo..

The ionic crystals consist of positively and negatively charged ions arranged in a regular fashion throughout the crystal. They form a network of positive and nagative ions in three dimension in such a way that cations and anions occupy alternate sites. These are held together by strong ..

These are radii of ions in ionic crystals. Ionic radius may be defined as the effective distance from the center of nucleus of an ion up to which it has an influence on its electron cloud. In ionic compounds the inter nuclear distance may be taken as equal to..

Physical state Ionic compounds do not exist in the form of independent molecules but exist in the form of ions in crystalline solids, according to X-ray studies. These ions are arranged to form the crystal lattice in definite geometric pattern. For example, in NaCl ..

The atomic and ionic radii of alkaline Earth metals are smaller than the corresponding members of the alkali metals. This is due to the fact of Group 2 elements having a higher nuclear charge allow electrons to be attracted more towards the nucleus. This reduces the size of atomic and ..

Bonding in Ionic Solids - In ionic solids, the constituent particles are ions. Coulombic forces of attraction hold oppositely charged ions together, to form ionic bonds. Each ion is surrounded by a certain fixed number of the ions of the opposite charge (as its nearest..

The atomic and ionic radii of group 13 elements are compared to corresponding elements of group 2. This is due to the increase in nuclear charge when one moves from, element of group 2 to group 13 in the same period. As the elements are considered from left to right in the period, the ma..

RbH and CsH burn spontaneously at room temperature. They are hydrolyzed by water with the formation of hydroxide and liberation of hydrogen. They act as powerful reducing agents, at high temperatures. For example, NaH reduces CO and CO 2 to formates on heat..