Number of people without health insurance rises. The U.S. Census Bureau announced this week that the number of people without health insurance coverage rose from 45.7 million in 2007 to 46.3 million in 2008, although the percentage remained unchanged at 15.4 percent.
Amongst the alloys found in native state have been brass, bronze, pewter, German silver, osmiridium, electrum, white gold, and silver-mercury and gold-mercury amalgam. Only gold, silver, copper and the platinum metals occur in nature in larger amounts.Over geological time scales, very few metals can resist natural weathering processes like oxidation, which is why generally only the less reactive metals such as gold and platinum are found as native metals.mongst the alloys found in native state have been brass, bronze, pewter, German silver, osmiridium, electrum, white gold, and silver-mercury and gold-mercury amalgam. Only gold, silver, copper and the platinum metals occur in nature in larger amounts.
There are really others, for quicksilver is a metal, although the Alchemists disagree with us on this subject, and bismuth is also. The ancient Greek writers seem to have been ignorant of bismuth, wherefore Ammonius rightly states that there are many species of metals, animals, and plants which are unknown to us.hen a metal ore is an ionic compound of that metal and a non-metal, the ore must usually be smelted â heated with a reducing agent â to extract the pure metal. Many common metals, such as iron, are smelted using carbon as a reducing agent.