What is used to calculate the mass of an atom

- What is used to calculate the mass number of an atom
- What is the equation used to calculate the mass of an atom
- What is the unit used to calculate the mass of an atom
- What is used to calculate the atomic mass of an element
- What is used to calculate the average atomic mass of an element
- What instrument is used to calculate the atomic mass of an element
- What two particles are used to calculate the atomic mass of an atom
- What expression is used to calculate the mass of one atom of carbon
- What is the formula used to calculate the average atomic mass of isotopes
- What subatomic particles are used to calculate the atomic mass of an element