What is a political action committee (PAC)? A political action committee (PAC) raises money for the purpose of defeating or electing candidates to elected office. PACs are formed by corporations, associations, labor unions and individuals with common interests.
Zinc is a lustrous bluish-white metal. It is found in group IIb of the periodic table. It is brittle and crystalline at ordinary temperatures, but it becomes ductile and malleable when heated between 110Â°C and 150Â°C. It is a fairly reactive metal that will combine with oxygen and other non-metals, and will react with dilute acids to release hydrogen.
Zinc may be classified as a post-transition main group element with zinc(II) having much chemical behaviour in common with copper(II). Many salts of zinc(II) are isomorphous with salts of magnesium(II) due to the ionic radii of the cations being almost the same.he compounds have the formula RZn 2 R and they contain a Zn â Zn bond analogous to the metal-metal bond in mercury(I) ion, Hg 2 2+ . In this respect zinc is similar to magnesium where low-valent compounds containing a Mg â Mg bond have been characterised.