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Tardigrade
Question
Chemistry
Actinides
Q. Actinides
1913
236
The d-and f-Block Elements
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A
are all synthetic elements
27%
B
include element 104
20%
C
are highly electropositive and reactive
29%
D
do not show variable oxidation states
24%
Solution:
Actinides are highly electropositive and reactive metals.