Ferromagnetic materials owe their properties to __________________ inner sub-shells ?

Ferromagnetic materials owe their properties to __________________ inn

1.	Ferromagnetic materials owe their properties to __________________ inner sub-shells ?
A.	Completely filled
B.	Partially filled
C.	Equally filled
D.	Vacant
Answer» C. Equally filled

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Ferromagnetic materials owe their properties to __________________ inner sub-shells ?

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