周期 7

87 Fr 钫 223.02 88 Ra 镭 226.025 89 Ac 锕 227.028 90 Th 钍 232.038 91 Pa 镤 231.036 92 U 铀 238.029 93 Np 镎 237.048 94 Pu 钚 244.064 95 Am 镅 243.061 96 Cm 锔 247.07 97 Bk 锫 247.07 98 Cf 锎 251.08 99 Es 锿 252.083 100 Fm 镄 257.095 101 Md 钔 258.098 102 No 锘 259.101 103 Lr 铹 266.12 104 Rf 𬬻 267.122 105 Db 𬭊 268.126 106 Sg 𬭳 269.128 107 Bh 𬭛 270.133 108 Hs 𬭶 269.134 109 Mt 鿏 277.154 110 Ds 𫟼 282.166 111 Rg 𬬭 282.169 112 Cn 鿔 286.179 113 Nh 鿭 286.182 114 Fl 𫓧 290.192 115 Mc 镆 290.196 116 Lv 𫟷 293.205 117 Ts 鿬 294.211 118 Og 鿫 295.216