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.
Metals have one to three electrons in their outer shell, whereas non-metals have four to eight electrons. Another difference is that metals tend to lose their valence electrons, but non-metals share or gain valence electrons. Where metals form oxides which are basic, non-metals form oxides which are acidic.While metals are very good reducing agents, non-metals are very good oxidising agents. Now, considering the difference between their physical properties, metals are malleable, which means it can be beaten to thin sheets.On the other hand, non-metals are very brittle. When comparing their density, metals have a high to moderate density, whereas non-metals have low to moderate density.etals and non-metals can be easily differentiated. In the periodic table, the metals are placed on the left, and the non-metals on the right. First of all, letâs look at the difference in the chemical properties between metals and non-metals.