Question

points 3 attempts left Check my work Be sure to answer all parts. Write a balanced nuclear equation for the positron emission of the following nucleus: arsenic-74. Give all nuclei in the form x. р о е At

Answer 1

Let the product be X

Let positron symbol be e.

Its mass is 0 and charge is +1

Balance mass number on both sides

mass of As = mass of e + mass of X

1*74 = 1*0 + M

M = 74

Balance atomic number on both sides

atomic of As = atomic of e + atomic of X

1*33 = 1*1 + A

A = 32

Atomic number 32 is for element Ge

So, the product is

74-Ge

The decay eqn is:

₃₃⁷⁴As -> ₁⁰e + ₃₂⁷⁴Ge

Answer:\ ₃₃⁷⁴As -> ₁⁰e + ₃₂⁷⁴Ge