Post Transition Metals

The post transition metals are a group of metals that have less defined metallic qualities that those of the transition metals. They usually have around 3 valence electrons, and many are used in alloys. They are also generally more reactive than the transition metals and have lower melting points. In addition, the first radioactive element in the periodic table, Bismuth, is a post transition metal. 

There are generally 11 post transition metals:

Group 13-

Aluminum-electron configuration: [Ne] 3s2 3p1- Van der Waals radius: 184 pm

Gallium-electron configuration: [Ar] 3d10 4s2 4p1- Van der Waals radius: 187 pm

Indium-electron configuration: [Kr] 4d10 5s2 5p1- Van der Waals radius: 193 pm

Thallium-electron configuration: [Xe] 4f14 5d10 6s2 6p1- Van der Waals radius: 220 pm

Nihonium-electron configuration: [Rn] 5f14 6d10 7s2 7p1- Van der Waals radius: N/A

Group 14-

Tin-electron configuration: [Kr] 4d10 5s2 5p2- Van der Waals radius: 225 pm

Lead-electron configuration: [Xe] 4f14 5d10 6s2 6p2- Van der Waals radius: 202 pm

Flerovium-electron configuration: [Rn] 5f14 6d10 7s2 7p2- Van der Waals radius: N/A

Group 15-

Bismuth-electron configuration: [Xe] 4f14 5d10 6s2 6p3- Van der Waals radius: 230 pm

Moscovium-electron configuration: [Rn] 5f14 6d10 7s2 7p3- Van der Waals radius: N/A

Group 16-

Livermorium-electron configuration: [Rn] 5f14 6d10 7s2 7p4- Van der Waals radius: N/A