Question

Define actinide series​

Answer 1

The actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. The actinoid series derives its name from the first element in the series, actinium.

Answer 2

Answer:

series of heavy radioactive metallic elements of increasing atomic number considered to be analogous to the lanthanide series and to begin with actinium (89) or thorium (90) and end with element of atomic number 103 — compare actinium series, periodic table.

Explanation:

Actinium, Thorium, uranium curium are the some example of Actinides series.