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Which of the following is an artificial man-made series? |
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a) |
Thorium series |
b) |
Neptunium series |
c) |
Uranium series |
d) |
Actinium series |
|
Which of the following is an artificial man-made series? |
|||||||
|
a) |
Thorium series |
b) |
Neptunium series |
c) |
Uranium series |
d) |
Actinium series |