Terbium 159 nucleus
Nuclear structure of

Terbium 159

stable.

Blue toruses = 159 protons
Red toruses = 94 nuclear electrons

Atomic number of Tb159 = protons (159) - nuclear electrons (94) = (65), with structure 5T+24D + 6T + 12D + 18T

Central rod of Tb159 stable isotope is 5T+24D.

The six member ring consists by 6 Tritium nuclei.
The second ring builds up by 12 Deuterium nuclei and
The outer ring builds up by 18 Tritium nuclei and

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Light photon model
The unique magnetic properties of Terbium


Samarium 152 nucleus Ytterbium 174 nucleus

Tb159

HHeLiBeBCNOFNe
NaMgSiSArCaFeNiNdPb