United States Marine Forces Central Command. (Redirected from MARCENT) The Commander, U.S. Marine Corps Forces, Central Command (COMUSMARCENT), is designated as the Marine Corps service component commander for Commander, U.S. Central Command (COMUSCENTCOM).
As a consequence of its structure where there are no significant lattice forces, gallium trichloride has the lowest melting point of all of the aluminium, gallium and indium trihalides. The formula of Ga 2 Cl 6 is often written as Ga 2 (Î¼-Cl) 2 Cl 4.
To answer your question simply, an ionic bond is formed between a metal and a nonmetal. Calcium is in group 2 on the periodic table (an alkali earth metal), and has a +2 charge. Chloride is from the halogens which has a -1 charge (halogens are non metals). The other way to determine the bond character is to use the electronegativity values from a chart. Chlorine has a value of 3.0 and Calcium a value of 1.0. Subtract and find the absolute value, and you get 2.0.