Answer:
Lanthanide series having elements from atomic number 58-71.
Actinide series having elements from atomic number 90 - 103.
Step-by-step explanation:
Lanthanides and actinides are inner transition elements.
They are also called f block elements.
Lanthanide series having elements from atomic number 58-71.
Actinide series having elements from atomic number 90 - 103.
Actinides are used in nuclear reactor nuclear bomb.
The first actinide which was discovered is uranium.
The americium is used in the detection of smoke.
Lanthanides are used in the production of permanent magnet, hybrid car, super conductor etc.
They all are radioactive.
None of these elements have stable isotope.