To decide if a binary compound has ionic or covalent bonding, first locate the two elements concerned in the Periodic Table and decide if they are metals (shown in blue) or non-metals (shown in pink).o decide if a binary compound has ionic or covalent bonding, first locate the two elements concerned in the Periodic Table and decide if they are metals (shown in blue) or non-metals (shown in pink).
Area code 518 is a telephone area code in eastern upstate New York, established as one of the original area codes in 1947.t has 493 landline and 100 wireless exchanges serviced by 47 carriers. It is the largest area code in size in New York, extending from the eastern Mohawk Valley to the Vermont border, and from the Canadian border to south of Albany.
The area code in red is Area Code 747; all others in blue are California area codes. Area code 818 is a California telephone area code that consists largely of the San Fernando Valley of Los Angeles, California.It was split from area code 213 on January 7, 1984. On June 14, 1997, area code 818 was split again, with area code 626 having been created for most of the San Gabriel Valley.allers within the 818 and 747 area codes would be required to dial 1 plus the area code (including calls to the same area code; cell phones could dial with or without the 1 prefix) for all calls.