Standard identity
Symbol: Fe
Atomic number: 26
Period: 4
Group: 8
Category: Transition metal
Real Science role
Dominant K-order: K3
Corridor type: Magnetic
Equality member: No
Interpretation
Iron is treated as a strong field-material coupling element with magnetic organization and magnon-relevant behavior. It is one of the clearest K3 material anchors.
Geometry relevance
BCC lattice
FCC lattice
Magnetic domain organization
Comparison
Compared with Copper, Iron emphasizes magnetic ordering more than direct conduction.
Compared with Silicon, Iron is less bridge-like and more purely K3 field-material.