54.93805
The atomic weight of manganese (Mn) is 54,938 044(3).
The molecular mass of manganese is approximately 54.94 grams per mole.
To calculate the relative atomic mass of an element (which is by its definition an average), you need the mass number and relative abundance of each isotope present. Suppose we have the following data from the mass spectrometer: first isotope mn X, abundance A% second isotope mn Y, abundance B% third isotope mn Z, abundance C%. Then ram = (A/100 x X) + (B/100 x Y) + (C/100 x Z) If there are more than 3 isotopes, just do the same for each one and add all the expressions together.
In it's most stable form, 55 is its atomic mass. 55 overall - 25 protons = 30 neutrons
The atomic number of manganese is 25. The atomic weight of Mn is 54.93805 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!25
Manganese (Mn)
The atomic weight of manganese (Mn) is 54,938 044(3).
Manganese or Mn has an atomic number of 25 (25 protons). The stable atom has 30 neutrons, so the stable atomic mass is 55 amu. The mass for one of its isotopes depends on how many neutrons it has. For instance, the next most stable isotope of Mn is Mn53 with only 28 neutrons so it has an atomic mass of 53 amu.
To find the mass of 1.02×10^24 atoms of Mn, you need to calculate the atomic mass of Mn from the periodic table (54.938045 g/mol). Then, divide the number of atoms by Avogadro's number to get moles, and finally multiply by the atomic mass to get the mass in grams. The mass of 1.02×10^24 atoms of Mn would be approximately 94.64 grams.
The molecular mass of manganese is approximately 54.94 grams per mole.
The molar mass is:39,0983 (atomic weight of K) + 54,938044 (idem for Mn) + (15,999 . 4 for O) = 157,432344 g
The atomic radius of manganese (Mn) is approximately 127 picometers (pm).
To calculate the relative atomic mass of an element (which is by its definition an average), you need the mass number and relative abundance of each isotope present. Suppose we have the following data from the mass spectrometer: first isotope mn X, abundance A% second isotope mn Y, abundance B% third isotope mn Z, abundance C%. Then ram = (A/100 x X) + (B/100 x Y) + (C/100 x Z) If there are more than 3 isotopes, just do the same for each one and add all the expressions together.
Manganese is a metal element. Atomic number of it is 25.
In it's most stable form, 55 is its atomic mass. 55 overall - 25 protons = 30 neutrons
The atomic number of manganese is 25. The atomic weight of Mn is 54.93805 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!25
It is an atom of the element manganese (symbol - Mn).