) and then was filled with krypton. Increase in mass is mass of krypton.The formula for calculating the average relative atomic mass is: (mass of isotope 1 x relative abundance of isotope 1) + (mass of isotope 2 x relative abundance of isotope 2) + ... + (mass of isotope n x relative abundance of isotope n)
The relative abundance of each isotope can be determined by dividing the number of atoms of a specific isotope by the total number of atoms in the sample.
Relative atomic mass is the weighted average of the masses of all the naturally occurring isotopes of an element, taking into account their relative abundance. Atomic mass is the mass of a single atom of an element, usually given in atomic mass units (amu).
The average relative atomic mass of a sample of krypton can change if the relative abundance of its isotopes changes. However, the mass of individual atoms of krypton will remain the same.
The average relative atomic mass of krypton is approximately 83.80 amu. This is higher than elements such as carbon (12.01 amu) and oxygen (15.99 amu), but lower than elements such as silver (107.87 amu) and gold (196.97 amu).