actinide series

American  

noun

Chemistry.

1. the series of radioactive elements that starts with actinium and ends with lawrencium.

---

actinide series British  

noun

1. a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium

---

Etymology

Origin of actinide series

First recorded in 1940–45

Example Sentences

See Examples For:

actinide series

Many of these elements, such as those in the lanthanide and actinide series, have applications ranging from cancer diagnostics and treatment to renewable energy technologies and long-lived nuclear batteries for deep space exploration.

From Science Daily ● May 22, 2024

They are the uranium series, the actinide series, and the thorium series.

From Textbooks ● Feb. 14, 2019

Similarly, the behavior of actinium means it is part of the actinide series, although its electron configuration makes it the first member of the fourth transition series.

From Textbooks ● Feb. 14, 2019