Francium is a radioacive chemical element; francium is natural but also may be prepared in laboratory.
All isotopes of francium are radioactive.
Yes, francium is synthetic. It is a highly radioactive element with a very short half-life, making it extremely rare and difficult to study in its natural form. Francium is typically produced in laboratory settings by bombarding thorium or other heavy elements with protons.
Francium is radioactive.
Francium is a natural chemical element.
Francium is a "radioactive" element.
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 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.