In actinides, starting from Actinium to Lawrentium, atomic and ionic size decrease with increase in atomic number as lanthanides. … They are more electropositive than lanthanides because they are under the lanthanides in periodic tables. So, they are more reactive than lanthanides. Are actinides series reactive? Like the lanthanides, allRead More →
The actinides are the 14 elements from thorium (atomic number 90) to lawrencium (atomic number 103). The 5 f sublevel is in the process of being filled. The actinides are all radioactive elements and only the first four have been found naturally on Earth. What group are the actinides in?Read More →
The lanthanides do not show much tendency to form complexes due to low charge density because of their size. However, the tendency to form complex and their stability increases with increasing atomic number. Why are all actinides radioactive? The radioactivity of the actinide elements is caused by their nuclear instability.Read More →