Given the following nuclear reaction:

223/87 Fr 0/-1e + a/z X

Column A
1.
What is the atomic mass of the new atom?:
What is the atomic mass of the new atom?
2.
What is the atomic number of the new atom?:
What is the atomic number of the new atom?
3.
What is the symbol of the new atom?:
What is the symbol of the new atom?
4.
What type of decay is demonstrated here?:
What type of decay is demonstrated here?

Column A

1. The atomic mass of the new atom cannot be determined based on the given information. The atomic mass is determined by the sum of the atomic masses of the particles involved in the reaction.
2. The atomic number of the new atom is 87, as indicated by the atomic number of Fr (Fr has an atomic number of 87).
3. The symbol of the new atom cannot be determined based on the given information. The symbol depends on the element being represented by the atomic number.
4. The type of decay demonstrated here is alpha decay. This is indicated by the emission of an alpha particle (a/z X refers to an alpha particle).