Re: Why is technetium unstable? « Reply #2 on: April 03, 2008, 09:38:52 AM » Look up a table of the known nuclei in a chemistry or physics databook. You would expect that if there were a stable isotope of technetium it would be around 97, 99 or 101. Now look up the sta...
Why are technetium and promethium radioactive?Radioactive:Radioactivity is a process of emission of radiation in form of particles or energy. It emits via radioactive decay. There are three processes of radioactive decay, which are gamma, alpha, and beta. Radioactivity occurs in an unstable ...
Why is there a strong nuclear force between protons? Why does spontaneous fission occur only in the heaviest nuclei? What happens to the atomic number in positron decay? What is the rate of radioactive decay? Why are technetium and promethium radioactive? Why does the strong nuclear force bec...
Non-metastatic was determined as a negative technetium-99m bone scan and negative CT scan. CRPC was defined as PSA-doubling in 10 months or less under continuous ADT (bilateral orchiectomy, GnRH analogues or GnRH antagonists). The primary endpoint was median metastasis-free survival (MFS) [50...
Answer and Explanation: The mantel-haenszel method is appropriate when we have to examine the association between two variables in the presence of a confounder. For example,... Learn more about this topic: Main Effect & Interactions | Definition, Examples & Types ...