In the context of multivalent ions, it is when it has multiple oxidative states.
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This is a bit long right now.
(n l m s) these are the numbers.
n=2, second orbital level.
l is the type of orbit: l=1 elongated, l=0 spherical
m=0, magnetic number: 0
s=spin, both have spin positive
You need still to round it up. Srry!
Answer:
graduated cylinder
Explanation:
It shows exact volume very precisely.
