I. Introduction

The vast majority of the substance components are exceptional due to the degree to wherein they have specific properties. In this regard, silver is no special case; it might, truth be told, be viewed as one of the more exceptional metals. It is customarily gathered with the honorable metals. While its protection from the more destructive specialists is to some degree sub-par compared to that of different individuals from this gathering, its protection from oxidation is magnificent. Its relatively low softening point and general simplicity of working have made it an exceptionally helpful metal. Silver has the most elevated known electrical and warm conductivities, however, for a channel of given weight per unit length, coppering in these respects is the second rate. In the liquid state, silver is equipped for engrossing specifically from the climate a measure of oxygen, which, at the air pressure, is commonly its own volume. After cooling to the strong state, for all intents and purposes this is just like all delivered. The response of the halogen salts of silver to the activity of light has made it of key importance in the area of photography. In the synthetic assembling field, the opposition of this metal to alkalies and to natural acids has made it be utilized in the assembling of numerous food and substance items. Its bactericidal properties are likewise remarkable. Water that contains just 0.020 mg per liter of silver will dispense with specific pathogenic microorganisms which are presented in that. Different mixtures of silver are utilized in drug arrangements. Silver, in contrast, to lead, mercury, and various different metals, isn't harmful when taken inside. Proceeded with inside utilization of impressive sums might cause a long-lasting obscuring of the skin, with no other evident outcome.

II. PROPERTIES OF SILVER

(1) Atomic Number.-The position of silver in the periodic arrangement of the elements is in group I and at the beginning of the last half of the second long period. Its atomic number is 47. The 47 electrons are contained in the first five quantum levels and are distributed as follows: K 2; L, 8; M, 18; N, 18; 0, 1. According to Grimm and Sommerfeld [151,1 the arrangement of 18 electrons in the fourth quantum level is one of great stability in the second long period of the elements. This statement agrees with the chemical behavior of silver, which almost invariably gives a univalent and colorless ion. The arrangement of the 18 electrons in quantum level 4 is too stable to be broken by chemical means. 

(2) Nuclear weight — The worth acknowledged by the Advisory Group on Nuclear Loads of the Worldwide Association of Science [4] for the nuclear load of silver is 107.880. G. P. Baxter and Charles H. Greene [6] found 107.880, in light of the proportion of alkali to silver.

 (3) Isotopes. — Aston [16] has revealed two isotopes of silver with masses of 107 and 109, the previous being dominating, a reality which is as per the synthetically resolved nuclear load of silver.

(4) Nuclear and ionic radii. — The size of an impartial iota or a particle of silver isn't steady, however, relies on its current circumstance, its charge, the size and charge of the particle or particles with which it is joined, the precious stone construction, and the sort of compound shaped. For the above reasons, an exact worth of the nuclear or ionic range of silver which is relevant to all circumstances, can't be given. Values going somewhere in the range of 1.40 and 1.77 A have been accounted for the nuclear sweep of silver. Bragg [22] from gem estimations on metallic silver gives 1.77 A for the range. Barth and Lunde [13] viewed it as 1.44 A, and Huggins [17], following Bragg's method, calculated the sweep to be 1.60 A. For the comic sweep, Pauling [12], from computations dependent part of the way upon hypothetical grounds, got a worth of 1. 26, time Goldschmidt [14], from computations in light of precious stone information of AGF, saw as 1.13 A.

(5) Thickness. (a) Room temperature. — The thickness of silver depends somewhat upon its mechanical state. For all-around strengthened material, either cast or worked, the estimations of Tomlinson [30], Bridgman [18], Honda and Shimizu [7], Lowry and Parker [26], Stahl [21], and others demonstrate that the thickness is extremely near 10.49 g/cm3 at room temperature. The thickness of cold-worked silver is particularly less. Tomlinson states that hard-drawn silver wire has a thickness of 10.434 contrasted and 10.491 for tempered material. Honda and Shimizu give 10.44 &ma as the thickness of silver which has been pounded.

(b) High temperature. — The majority of the estimations of the thickness of silver at high temperatures have been worried about the liquid material. A couple of values underneath the dissolving point as distributed by Sauerwald [20] are:
 700° C................................................................................................................ 9.89 g/cms.                                        800° C................................................................................................................... 9.80 g/cm'.   900°.................................................................................................................. C 9.72 g/cm3.
Sauerwald's worth of the thickness at room temperature shows up somewhat low in any case, as he brings up, his qualities at higher temperatures concur genuinely well with those determined from development information. His information for liquid material likewise seems to concur genuinely well with the consequences of different onlookers.