If youâre curious about how America will pay for the cost of Obamacare, then direct your attention to the Internal Revenue Service. People who donât obtain health insurance through the Marketplace, their employers or a private source will be assessed a tax penalty.
Photo by: concept w. Argon is a noble gas. The noble gases are the six elements in Group 18 (VIIIA) of the periodic table. The periodic table is a chart that shows how the chemical elements are related to each other. The noble gases are sometimes called inert gases because Group 18 (VIIIA) elements react with very few other elements.
Argon was suspected to be present in air by Henry Cavendish in 1785 but wasn't discovered until 1894 by Lord Rayleigh and Sir William Ramsay. Argon is the third noble gas, in period 8, and it makes up about 1% of the Earth's atmosphere.