What value of Z (atomic number)and A (mass number)result in the following alpha decay? ${ } _ { 92 } ^ { 238 } U \rightarrow { } _ { z } ^ { A } X + \alpha$

Name: What value of Z (atomic number)and A (mass number)result in the following alpha decay? ${ } _ { 92 } ^ { 238 } U \rightarrow { } _ { z } ^ { A } X + \alpha$
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In alpha decay, the atomic number decreases by 2 and the mass number decreases by 4. Therefore, for uranium-238, the resulting element will have Z = 90 and A = 234.

What Value of Z (Atomic Number)and a (Mass Number)result in the Following