Question

What are the activities? What is the common oxidation state of actinoids? Discuss the important physical properties of actinoids

Answer 1

Dear Student,

It should be actinides instead of activities.
Actinoids are the 6d trannsition elements from atomic no. 89 to 103 in the periodic table. They belong to the f-block elements.
The most common oxidation state of actinoids are +3.
Important physical properties of actinoids are :

1. They all are radioactive
2. They are highly electropositive.
3. The metals tarnsih readily in air.
4. They react with boiling water or dilute acids to release hydrogen gas.
5. They combine directly with non metals.