Given the following nuclear reaction:
247/96Cm--> 4/2 He + A/ZX
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 B
a.98
b.243
c.96
d.Cm
e.U
f.94
g.Alpha Decay
h.Beta Decay
i.248
j.Cf
k.251
l.Pu
m.Gamma Decay
n.247
Column A:
1. What is the atomic mass of the new atom? - k. 251
2. What is the atomic number of the new atom? - c. 96
3. What is the symbol of the new atom? - j. Cf
4. What type of decay is demonstrated here? - g. Alpha Decay
Column A
1. What is the atomic mass of the new atom?
- The atomic mass of the new atom is 243 (b).
2. What is the atomic number of the new atom?
- The atomic number of the new atom is 96 (c).
3. What is the symbol of the new atom?
- The symbol of the new atom is Cm (d).
4. What type of decay is demonstrated here?
- The type of decay demonstrated here is Alpha Decay (g).
1. To determine the atomic mass of the new atom, you need to sum up the atomic masses of all the particles involved in the reaction. In this case, the reaction shows that 4/2 He (a helium-4 nucleus) and an unknown atom A/ZX are produced from 247/96 Cm (a californium-247 nucleus). The atomic mass of helium-4 is approximately 4 atomic mass units (amu). To find the atomic mass of A/ZX, subtract the mass of helium-4 from the mass of californium-247.
Atomic mass of the new atom = (Mass of californium-247) - (Mass of helium-4)
2. The atomic number of the new atom, also known as the proton number, is the number of protons in its nucleus. Since the helium-4 nucleus contains 2 protons, and the californium-247 nucleus contains 96 protons, you can determine the atomic number of A/ZX by subtracting the number of protons in helium-4 from the number of protons in californium-247.
Atomic number of the new atom = (Atomic number of californium-247) - (Atomic number of helium-4)
3. The symbol of the new atom, A/ZX, represents the element and its atomic number and mass number. The element symbol is typically derived from the first one or two letters of the element name. To determine the symbol of A/ZX, you need to find the element with the atomic number obtained in step 2 (the atomic number of the new atom) and the atomic mass obtained in step 1 (the atomic mass of the new atom). Consult the periodic table to match the atomic number and atomic mass to the appropriate element symbol.
4. To determine the type of decay demonstrated in this nuclear reaction, you need to analyze the changes in the atomic and mass numbers. In this case, the californium-247 nucleus (247/96 Cm) is decaying, and the resulting products include 4/2 He (helium-4 nucleus) and the new atom A/ZX.
Since the mass number decreases by 4 (from 247 to the atomic mass of the new atom), this indicates the emission of a helium-4 nucleus (4/2 He), which is called an alpha decay.
Therefore, the answers to the questions in Column A would be:
1. b. 243
2. c. 96
3. d. Cm
4. g. Alpha Decay