also see: 1  couldn't care less. 2  for all (I care) 3  in care of. 4  in charge (the care of) 5  take care. 6  take care of. 7  tender loving care. 8  that's (takes care of) that.
Plutonium is a member of the actinide family. The actinides occur in Row 7 of the periodic table. The periodic table is a chart that shows how chemical elements are related to one another. The actinides get their name from element 89, actinium, which is sometimes considered the first member of the family.he half life of a radioactive element is the time it takes for half of a sample of the element to break down. Consider the isotope plutonium-242, with its half life of 376,300 years. In 376,300 years (one half life), only half of a sample prepared today would still be plutonium-242.
One of these small families, the coinage metals, consists of copper, silver and gold, the three elements in group 11. The other family, the platinum metals, includes elements from three groups: ruthenium and osmium from group 8; rhodium and iridium from group 9; and palladium and platinum from group 10.nlike the majority of the transition metals, the coinage metals each have a full d sublevel and one electron in an s sublevel, that is, an electron configuration that terminates in (n-1) d.