Actinium has only rare applications:
227Ac in neutron sources, as Ac-Be.
225Ac in radiotherapy of cancers
227Ac as tracer in oceanography
But actinium is rare, expensive and radioactive; perhaps I consider that actinium is good for science.
Benefit is good thing. Its good compared to bad.
A positive thing is good and a negative thing is bad .
what is the good thing anout polio? and what is the bad thing? what is the good thing anout polio? and what is the bad thing?
what is the good thing anout polio? and what is the bad thing? what is the good thing anout polio? and what is the bad thing?
good thing
It is a good thing.
it is a good thing and a bad thing
Its actually a good thing not a bad thing. thanks for the question I had funcaanswering that question.
Agriculture is a good thing.
very good thing
Conservation is a good thing.
I think its a bad thing.