Answer :
To determine the mass of a single atom of Selenium-82 (Se-82), we typically measure it in atomic mass units (amu). This is because an atom's mass is incredibly tiny, and amu is a convenient unit for these small values.
Here's how you can identify the mass of one atom of Se-82:
1. Understand the Unit: The mass of an atom is often listed in atomic mass units (amu). It is a common unit used for the mass of molecules and atoms.
2. Identify the Mass of Se-82: Look for the atomic mass of Selenium-82 in the provided options. The correct choice is 81.92 amu, which is the atomic mass for Se-82. This is the closest value related to this isotope.
Therefore, the mass of one atom of Se-82 is 81.92 amu. This is the best choice from the given options.
Here's how you can identify the mass of one atom of Se-82:
1. Understand the Unit: The mass of an atom is often listed in atomic mass units (amu). It is a common unit used for the mass of molecules and atoms.
2. Identify the Mass of Se-82: Look for the atomic mass of Selenium-82 in the provided options. The correct choice is 81.92 amu, which is the atomic mass for Se-82. This is the closest value related to this isotope.
Therefore, the mass of one atom of Se-82 is 81.92 amu. This is the best choice from the given options.
