Proton:55 Neutron:78 Spin:7/2 Energy State: Stable Proton configuration: [Xe] 6s1
Proton:56 Neutron:82 Spin: 0 Energy State: Stable Proton configuration: [Xe] 6s2
Proton:57 Neutron:82 Spin: 7/2 Energy State: Stable Proton configuration: [Xe] 5d1 6s2
Proton:58 Neutron:82 Spin: 0 Energy State: Stable Proton configuration:[Xe] 6s2 5d1 4f1
Proton:59 Neutron:82 Spin: 5/2 Energy State: Stable Proton configuration: [Xe] 6s2 4f3
Proton:60 Neutron:82 Spin: 0 Energy State: Stable Proton configuration: [Xe] 6s2 4f4
Proton:61 Neutron:84 Spin:5/2 Half Life: 17.7 year Proton configuration: [Xe] 6s2 5d1 4f4
Proton:62 Neutron:90 Spin: 0 Energy State: Stable Proton configuration:[Xe] 6s2 5d2 4f4
Proton:63 Neutron:90 Spin: 5/2 Energy State: Stable Proton configuration:[Xe] 6s2 5d3 4f4
Proton:64 Neutron:94 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 5d4 4f4
Proton:65 Neutron:94 Spin:3/2 Energy State: Stable Proton configuration:[Xe] 6s2 5d5 4f4
Proton:66 Neutron:98 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 5d6 4f4
Proton:67 Neutron:98 Spin:-7/2 Energy State: Stable Proton configuration:[Xe] 6s2 5d7 4f4
Proton:68 Neutron:98 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d8
Proton:69 Neutron:100 Spin:1/2 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d9
Proton:70 Neutron:104 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10
Proton:71 Neutron:104 Spin:7/2 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d1
Proton:72 Neutron:108 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d2
Proton:73 Neutron:108 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d3
Proton:74 Neutron:110 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d4
Proton:75 Neutron:110 Spin:5/2 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d5
Proton:76 Neutron:116 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d6
Proton:77 Neutron:116 Spin:3/2 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d7
Proton:78 Neutron:117 Spin:-1/2 Energy State: Stable Proton configuration:[Xe] 6s1 6f4 6d10 6d9
Proton:79 Neutron:118 Spin:3/2 Energy State: Stable Proton configuration:[Xe] 6s1 6f4 6d10 6d10
Proton:80 Neutron:122 Spin:0 Energy State: Stable Proton configuration:[Xe] 6s2 6f4 6d10 6d10
Proton:81 Neutron:124 Spin:1/2 Energy State: Stable Proton configuration: [Xe] 6s2 6f4 6d10 6d10 6p1
Proton:82 Neutron:126 Spin:0 Energy State: Stable Proton configuration: [Xe] 6s2 6f4 6d10 6d10 6p2
Proton:83 Neutron:126 Spin:-9/2 Half Life:1.9×10^19 year Proton configuration: [Xe] 6s2 6f4 6d10 6d10 6p3
Proton:84 Neutron:126 Spin:0 Half Life:138.376 day Proton configuration: [Xe] 6s2 6f4 6d10 6d10 6p4
Proton:86 Neutron:136 Spin:0 Half Life:3.8235 day Proton configuration: [Xe] 6s2 6f4 6d10 6d10 6p6