925 silver gold plated is better. The price is also higher.
Silver (Argentum) is a transition metal, chemical symbol Ag. silver is one of the metals known and utilized in ancient times, is an important precious metal. Silver in nature, there are monomers, but the vast majority of them are in the form of chemical compounds present in the silver ore. The physical and chemical properties of silver are more stable, thermal and electrical conductivity is very good, soft, rich ductility, its reflectivity is very high, up to 99% or more, there are many important uses.
Silver is a beautiful silver-white metal, it has a very good ductility, its electrical conductivity and thermal conductivity in all metals are the highest. Silver is commonly used to make extremely sensitive components of physical instruments, all kinds of automated devices, rockets, submarines, computers, nuclear devices, and communication systems, all of which have a large number of contact points made of silver.
During the period of use, each contact has to work millions of times, and must be wear-resistant and reliable to withstand the rigors of the work, silver can fully meet the requirements of all kinds of requirements. If rare earth elements are added to silver, the performance is even better. With this kind of silver with rare earth elements produced by the contact point, life can be extended several times.
The most important compound of silver is silver nitrate. In medicine, an aqueous solution of silver nitrate is commonly used as eye drops.