![SOLVED: The figure below shows a nuclear reaction; what is the atomic number of the Pa? 234 Th 90 234 Pa + 5 8 e a) 89 91 3 144 92 SOLVED: The figure below shows a nuclear reaction; what is the atomic number of the Pa? 234 Th 90 234 Pa + 5 8 e a) 89 91 3 144 92](https://cdn.numerade.com/ask_images/a7671338bc3e485fbb40d284da668fd2.jpg)
SOLVED: The figure below shows a nuclear reaction; what is the atomic number of the Pa? 234 Th 90 234 Pa + 5 8 e a) 89 91 3 144 92
![SOLVED:The half-life of protactinium-234 in its ground state is 6.69 h. What fraction of a given amount remains after 26.76 h? SOLVED:The half-life of protactinium-234 in its ground state is 6.69 h. What fraction of a given amount remains after 26.76 h?](https://cdn.numerade.com/previews/e268cf8e-ac50-45da-b005-ce95341c6c61.gif)
SOLVED:The half-life of protactinium-234 in its ground state is 6.69 h. What fraction of a given amount remains after 26.76 h?
![The atomic mass of thorium `._(90)^(234)Th` is `234.04359 u`, while that of protactinium `. - YouTube The atomic mass of thorium `._(90)^(234)Th` is `234.04359 u`, while that of protactinium `. - YouTube](https://i.ytimg.com/vi/C9FS73obSbQ/maxresdefault.jpg?sqp=-oaymwEmCIAKENAF8quKqQMa8AEB-AH-CYAC0AWKAgwIABABGGUgZShlMA8=&rs=AOn4CLDJysnOGYvtnVscZoKUc7rNoFyEZg)