Q: Is silver the metallic element with the atomic number 47? ¶
Q: Is silver important in Judaic law? ¶
Q: Was silver also used in aircraft master rod bearings? ¶
Q: Is silver used in the manufacture of crystalline solar photovoltaic panels? ¶
Q: Is silver large enough that this factor has a much smaller effect? ¶
A: Yes, and furthermore the second ionisation energy of silver is greater than that for copper.
Q: Is silver often used simply as a precious metal? ¶
A: Yes, and including currency and decorative items.
Q: Is silver used in solder and brazing alloys? ¶
A: Yes, and as a thin layer on bearing surfaces, it provides a significant increase in galling resistance, reducing wear under heavy load, particularly against steel.
Q: Is silver similar in its physical and chemical properties to its two vertical neighbours in group 11 of the periodic table? ¶
A: Yes, and copper and gold.
Q: Is silver changed to cupro-nickel in 1947? ¶
A: Yes, existing coins were not withdrawn, but ceased circulating as the silver content came to exceed the face value.
Q: Is silver lacking a covalent character and are relatively weak? ¶
Q: Is silver found in native form? ¶
A: Yes, as an alloy with gold , and in ores containing sulfur, arsenic, antimony, or chlorine.
Q: Is silver not attacked by non-oxidizing acids? ¶
A: Yes, and the metal dissolves readily in hot concentrated sulfuric acid, as well as dilute or concentrated nitric acid.
Q: Was silver called luna by the ancient alchemists? ¶
A: Yes, and who believed that silver was associated with the moon.
Q: Is silver used in electromagnets for enriching uranium? ¶
A: Yes, and mainly because of the wartime shortage of copper.
Q: Is silver largely unchanged while the electron concentration rises as more zinc is added? ¶
Q: Was silver returned to the government vaults? ¶
Q: Is silver used as a currency by many individuals? ¶
A: Yes, and is legal tender in the US state of Utah.
Q: Is silver large enough that it no longer corresponds to absorption in the visible region of the spectrum, but rather in the ultraviolet? ¶
A: Yes, hence silver is not a coloured metal.
Q: Is silver the reflective coating of choice for concentrated solar power reflectors? ¶
Q: Is silver the ores of copper? ¶
A: Yes, and copper-nickel, lead, and lead-zinc obtained from Peru, Bolivia, Mexico, China, Australia, Chile, Poland and Serbia.
Q: Was silver being separated from lead as early as the 4th millennium BC? ¶
Q: Is silver mentioned in the Book of Genesis? ¶
Q: Was silver less than the face value of circulating silver coins? ¶
A: Yes, and reaching its nadir of about $.25 per ounce in 1932, and the silver coins of the United States were effectively fiat coins for much of that history.
Q: Was silver borrowed from the United States Treasury for electrical windings by several production facilities, including those of the Manhattan Project? ¶
A: Yes, see below under History, WWII.
Q: Is silver an ideal catalyst in oxidation reactions? ¶
A: Yes, for example, formaldehyde is produced from methanol and air using silver screens or crystallites of a minimum 99.
Q: Is silver incorporated into wound dressings and used as an antibiotic coating in medical devices? ¶
Q: Was silver alloyed with mercury at room temperature to make amalgams widely used for dental fillings? ¶
Q: Is silver produced as a byproduct of copper? ¶
A: Yes, and gold, lead, and zinc refining.
Q: Is silver : +1? ¶
A: Yes, +2 fluoride, AgF2); +3 , KAgF4); and even occasionally +4 , K2AgF6). The +1 state is by far the most common, followed by the reducing +2 state).
Q: Is silver also used in some medical applications, such as urinary catheters and in endotracheal breathing tubes? ¶
A: Yes, The silver ion is bioactive and in sufficient concentration readily kills bacteria in vitro.
Q: Is silver the greatest of all metals? ¶
A: Yes, and greater even than copper, but it is not widely used for this property because of the higher cost.
Q: Is silver composed of two stable isotopes, 107Ag and 109Ag, with 107Ag being slightly more abundant? ¶
A: Yes, This almost equal abundance is rare in the periodic table.
Q: Is silver near the bottom of the electrochemical series = +0.799 V))? ¶
A: Yes, In group 11, silver has the lowest first ionization energy , but has higher second and third ionization energies than copper and gold , so that the chemistry of silver is predominantly that of the +1 oxidation state, reflecting the increasingly limited range of oxidation states along the transition series as the d-orbitals fill and stabilize.
Q: Is silver an extremely soft? ¶
A: Yes, and ductile and malleable transition metal, though it is slightly less malleable than gold.
Q: Is silver used in water purifiers to prevent bacteria and algae from growing in the filters? ¶
Q: Is silver a constituent of almost all colored carat gold alloys and carat gold solders? ¶
A: Yes, and giving the alloys paler color and greater hardness.
Q: Is silver used in numerous applications other than currency, such as solar panels, water filtration, jewelry, ornaments, high-value tableware and utensils , and as an investment medium? ¶
A: Yes, Silver is used industrially in electrical contacts and conductors, in specialized mirrors, window coatings, and in catalysis of chemical reactions.
Q: Is silver an alternative? ¶
A: Yes, and hallmark-quality standard containing 95.
Q: Is silver used in food coloring? ¶
A: Yes, it has the E174 designation and is approved in the European Union.
Q: Was silver also used for reflectors in searchlights and lights? ¶
Q: Is silver a rather unreactive metal? ¶
Q: Is silver projected for use by solar energy in 2015? ¶
Q: Was silver refined and coined in its pure form? ¶
Q: Is silver immediately dangerous to life and health? ¶
Q: Is silver estimated to have surpassed $1,200 per ounce? ¶
A: Yes, and based on 2011 dollars.
Q: Is silver stable even in the absence of π-acceptor ligands? ¶
Q: Was silver US$482? ¶
Q: Is silver the difluoride? ¶
A: Yes, and AgF2, which can be obtained from the elements under heat.
Q: Is silver so malleable? ¶
A: Yes, and silversmiths have many choices for working the metal.
Q: Is silver also used in plasmonic solar cells? ¶
Q: Is silver produced during certain types of supernova explosions by nucleosynthesis from lighter elements through the r-process? ¶
A: Yes, and a form of nuclear fusion that produces many elements heavier than iron.
Q: Is silver formed by the addition of germanium? ¶
A: Yes, and having improved properties including resistance to firescale.
Q: Is silver at least 99? ¶
Q: Is silver a disputed subject? ¶
Q: Was silver used in nickels during the war to save that metal for use in steel alloys? ¶