👉 Bichromate is a colorless, semi-herbolic compound. It is composed of two elements, beryllium (Be) and chromium (Cr). Beryllium is an element with atomic number 26 and atomic mass 48. Chromium is an element with atomic number 27 and atomic mass 50. Bichromate can be formed when beryllium reacts with chromium to form a compound known as dichromate, which is