Unstable isotopes (the stability depends on the number of protons and neutrons in the atomoc nucleus, the Atomic Mass, etc.) are all radioactive.
Francium is a highly reactive metal that is extremely rare and unstable. It is also radioactive, which makes it dangerous to handle. Due to these properties, francium is not commonly used in everyday applications.
Francium (Fr) is a natural radioactive element, extremely rare.
Francium is harmful because it is highly radioactive and can emit harmful radiation, which can damage cells and tissues in the body. In addition, francium can react violently with water, releasing hydrogen gas and potentially causing burns or injuries. Due to its extreme rarity and short half-life, francium is not a significant health concern in everyday life.
Fr2Te is a chemical compound composed of francium (Fr) and tellurium (Te). It is a rare and unstable compound due to the highly radioactive nature of francium.
'FrCl' is Francium chloride. NB Francium(Fr) is the heaviest of the Group(I) [Alkali] metals. You will not find it in the open lab. because it is radioactive.
All isotopes of francium are radioactive.
Francium is radioactive.
Francium is a radioacive chemical element; francium is natural but also may be prepared in laboratory.
Francium is a radioactive element supporting radioactive disintegration.
Francium has an extremely short half life of about 20 minutes so no it is not. Radioactive lasers do not use radioactive materials anyway.
Francium is a "radioactive" element.
Francium is a strongly radioactive element and is of course dangerous.
Francium is a radioactive, very rare, natural chemical element.
Francium is very radioactive, very unstable and very scarce.
Francium is a highly reactive metal that is extremely rare and unstable. It is also radioactive, which makes it dangerous to handle. Due to these properties, francium is not commonly used in everyday applications.
Francium is a radioactive chemical element an can disintegrate.
Francium (Fr) is a natural radioactive element, extremely rare.