a
Actinoids
b
Nucleotides
c
Pre-actinum elements
d
Atomic elements
Explanation
Correct Option
aVideo Explanation
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Bt1
2 years ago
Actinoids are a series of elements in the periodic table that are characterized by having similar chemical and physical properties, such as radioactive decay and the ability to form complex ions. Actinoids include elements such as thorium, protactinium, and uranium. Actinoids are also sometimes referred to as the actinide series.
So option A is correct

