Br has 35 electrons and 44 protons. Br has 35 electrons and 44 protons. The average atomic mass of Cl is 35.453. Cl none of these 11. A well near the beach is suspected to be contaminated with chloride ions from sea water.
Ammonium nitrate is used as a nitrogen fertilizer.
The atomic weights of S and O are 32.07 and 16.00, respectively. CH 2 O and molecular weight 360. The atomic weight of O is 16.