Radium is strongly radioactive.
Polonium and radium are radioactive elements and toxic; they are dangerous.
no it is not
Radium is element number 88 with the symbol Ra. Radium is an alkaline earth metal in group 2 of the periodic table. Radium is radioactive and very toxic.
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.
Radium is a radioactive chemical element, very dangerous, an alpha radiations emitter; radium is also a source of radon, by decay - radon (gas) is also a radioactive element.
Yes. Radium is a highly radioactive alkali earth metal, and inhalation, injection, ingestion or body exposure to radium can cause chemical burns, radiation burns and can lead to cancer and other disorders. Radium is chemically similar to calcium, and it has the ability to replace calcuim in bones, which is extremely harmful. A link is provided to the Wikipedia article on radium.
Plutonium is very toxic, highly radioactive (alpha-emitter) and sometimes the criticality is a problem.
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.
Radium is a solid, radon is a gas. Both are radioactive.
Yes, radium and polonium are radioactive elements.
Because plutonium is very toxic, radioactive, flammable and explosive.
As radium is radioactive, radium chloride would also be radioactive. Any compounds make with any radioactive material are radioactive, and they cannot be "not" radioactive. Radioactive material doesn't really care if it is "alone" or in compound; it will be radioactive in any case.