All the decay chain isotopes are radioactive and toxic (excepting the last member which is non-radioactive but also toxic); you think probably to radium or polonium.
neptunium and plutonium
Uranium itself is a radioactive and toxic element. All the elements from the decay chain of uranium isotopes are also radioactive (ex.: radon, radium, etc.) excepting the final product, an isotope of lead.
Actinium is a natural chemical element, radioactive; actinium is a decay product of uranium.
Francium is a highly radioactive element, so it is not naturally found in significant quantities in any food sources. It is produced in very small amounts as a decay product of uranium and thorium. Due to its extreme rarity and radioactivity, it is not present in any food sources in substantial quantities for consumption.
Gold is a metallic element, not a process, therefore no gold does not have a waste product.
The daughter product of nuclear decay is a new element or isotope that is formed as a result of the original radioactive material decaying.
xenon is usually a waste product of nuclear reactors and although has power not that much
The term for the element that a radioactive isotope decays into is called the "daughter product". During radioactive decay, the original isotope transforms into a different element or isotope through a series of decay reactions.
All isotopes of technetium are radioactive. Technetium is found only in trace quantities in nature, and then usually only in certain ores where it is a product of radioactive decay. All of the technetium used is synthetic.
The end products of uranium isotopes decay chain are the isotopes of lead.
The chemical formula of sodium bromide is NaBr.
If a colorless odorless gas combined with a magnetic metallic element, a reasonable prediction would be that the metal is either Fe, Co, or Ni. The gas is too hard to predict, but the product will have different properties than each reactant alone.