This compound is beryllium chromate.
Beryllium chromate
Beryllium Chromate = BeCrO4
Beryllium is Be and chromate is CrO4 Following the formula rules, the formula is: BeCrO4
There are three elements that make up the compound beryllium chromate: Be = beryllium Cr = chromium O = oxygen
beryllium, Be, and chlorite, ClO2 . Be has a 2+ charge, and ClO2 has a 1- charge. To make a formula for beryllium chlorite, the charges must be balanced at 0. Since Be is 2+, and ClO2 is 1-, there needs to be 2 ClO2 to equal 0. +2 + -2=0. The formula is Be(ClO2)2