223/87 Fr-0/1e+a/zX what is the atomic mass od the new atom?

The atomic mass of the new atom cannot be determined from the given information.

To find the atomic mass of the new atom, we need to understand the components of the given expression.

"223/87 Fr" indicates the element Francium, where the number 223 represents the atomic mass (mass number) of the isotope of Francium, and 87 represents the atomic number (number of protons).

However, "0/1e+a/zX" is not a recognized notation in chemistry and does not provide any relevant information. It appears to be an arbitrary expression without any meaning related to atomic mass.

Therefore, we cannot determine the atomic mass of the new atom based on the given expression. To find the atomic mass of an atom, we need either the name or symbol of a known element and its associated atomic number and mass number, or the exact isotopic information of the atom.

To determine the atomic mass of a new atom, we need the individual atomic masses of the elements involved. However, the given expression "223/87 Fr-0/1e+a/zX" does not correspond to any known atomic notation or naming convention. It appears to be an arbitrary combination of symbols and letters.

Could you please provide more information or clarify the expression so that I can assist you better?