The atomic mass in Phosphorus is a decimal because . Neutrons aren't always the same mass. It is charged. proton number varies. It is the average mass of all phosphorus elements in nature.

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen