Lead Radioisotopes - ț̢
Unstable isotopes of lead that decay or disintegrate emitting radiation. Pb atoms with atomic weights 194-203, 205, and 209-214 are radioactive lead isotopes.
Synonyms : Radioisotopes, Lead
Leadership - ț̢
The function of directing or controlling the actions or attitudes of an individual or group with more or less willing acquiescence of the followers.