1 Silicon. 2  Boron. 3  Germanium. 4  Arsenic. 5  Antimony. 6  Tellurium. 7  Unlike other families of elements such as the noble gases, alkali metals, and halogens, the metalloids form a diagonal line on the periodic table rather than a vertical line. Silicon. 2  Boron. 3  Germanium. 4  Arsenic. 5  Antimony. 6  Tellurium. 7  Unlike other families of elements such as the noble gases, alkali metals, and halogens, the metalloids form a diagonal line on the periodic table rather than a vertical line.
What is HARPC? HARPC stands for âHazard Analysis and Risk-Based Preventive Controls.â It is one of many new provisions of the FDA Food Safety Modernization Act, a sweeping food safety legislation amending the Food, Drug and Cosmetic Act that was enacted in January of 2011.
IRAC is a four-channel camera that provides simultaneous 5.2 x 5.2 arcmin images at 3.6, 4.5, 5.8, and 8 microns (the black instrument in the lower right part of the above image; see the optical housing model and the conceptual layout diagram. The pixel size is 1.22 arcsec in all bands.