arsenic is an entirely different element from copper. atomic number of copper (Cu) is 29 and belongs to 11 th group of periodic table and atomic number of arsenic(As) is 33,from group 15 .
There are two copper oxides. Copper I oxide (Cu2O) and copper II oxide (CuO) both contain copper and oxygen. Copper II oxide is a reddish solid and Copper II oxide is a black solid. Both are...
Its Valency = 2 the formula being CuO The copper donates two electrons to the oxygen and forms one ionic bond.Added: There are two copper oxides, differing in color: if it is black powder, then it is...