Αποτελέσματα Αναζήτησης
Actinide is a term for the 14 metallic elements in the 5f series, from actinium to nobelium, that are mostly radioactive and have large atomic and ionic radii. They are used in nuclear reactors, weapons and smoke detectors, and some are produced by radioactive decay of uranium and thorium.
2 Οκτ 2019 · Actinides are a group of 15 metallic elements with atomic numbers from 89 to 103. They are all radioactive, highly reactive, and have various uses in nuclear chemistry and energy production.
18 Οκτ 2020 · Actinides are a group of 15 radioactive metals on the bottom row of the periodic table. They have no stable isotopes, fill the 5f electron sublevel, and are important in nuclear chemistry.
19 Δεκ 2022 · Actinides are a group of 15 radioactive metal elements with atomic numbers from 89 to 103. They are similar to lanthanides and have various applications in nuclear energy, medicine, and research.
actinoid element, any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103). As a group, they are significant largely because of their radioactivity.
30 Ιουν 2023 · The Actinide series contains elements with atomic numbers 89 to 103 and is the sixth period and third group of the periodic table. The series is the row below the Lanthanide series, which is located underneath the main body of the periodic table.
Definition: What are actinides? Actinides belong to the family of inner transition metals with partially filled 5f subshell. They are named after actinium, the first element in the series, and play a crucial role in nuclear chemistry [1].
