Answer:
The order of decreasing mass is: I - Fe-Mn- N
Explanation:
According to the periodic table the atomic masses of the elements of the statement are:
IODE (I): 126, 90447
IRON (Fe): 55,845
MANGANESE (Mn): 54, 938844
NITROGEN (N): 14, 0067
Answer: I > Fe > Mn > N
Explanation:
Using periodic table of elements,
Iodine (I) have a molar mass of 126.90 amu,
Iron (Fe) have a molar mass of 55.86 amu
Manganese (Mn) have a molar mass of 54.9 amu and the least is Nitrogen (N) with a molar mass of 14.0 amu. Where amu stands for "atomic mass unit"
