Lithium phosphide (three lithium atoms with one phosphorus atom)has a chemical formula of Li_(3)P. If you look at the total atomic mass of Li_(3)P does Jithium or phosphor Scroll More b more of it is impossible to tell they are exactly the same phosphorus lithium

To determine which element contributes more to the total atomic mass of lithium phosphide ( ), we need to compare the atomic masses of lithium (Li) and phosphorus (P).The atomic mass of lithium (Li) is approximately 6.94 atomic mass units (amu), while the atomic mass of phosphorus (P) is approximately 30.97 amu.Since there are three lithium atoms in the chemical formula of lithium phosphide ( ), the total atomic mass contributed by lithium is 3 times the atomic mass of a single lithium atom, which is 3 * 6.94 = 20.82 amu.The atomic mass of phosphorus (P) is 30.97 amu.Comparing the total atomic masses, we can see that the atomic mass of phosphorus (30.97 amu) is greater than the total atomic mass contributed by lithium (20.82 amu).Therefore, phosphorus contributes more to the total atomic mass of lithium phosphide ( ) than lithium.