鐳 (金屬)
原子序:88
電子排佈:2, 8, 18, 32, 18, 8, 2
物態(常溫常壓):固態
族:2
週期:7
Radium (Metal)
Atomic no: 88
electronic arrangement: 2, 8, 18, 32, 18, 8, 2
State (r.t.p): Solid
Group: 2
Period: 7