Post-transition metals of the Periodic Table

The p-block metals (the post-transition metals) are usually softer than the transition metals and have lower melting points. There are 12 elements of this category in the periodic table, from Aluminum (Al), atomic number 13, to Livermorium (Lv), atomic number 116.

Post-transition metals at a glance

Number of elements: 12
Phase under standard conditions: Solid 12 elements

Element list

Atomic no.	Symbol	Name	Atomic mass	Phase	Short configuration
13	Al	Aluminum	26.982	Solid	[Ne] 3s² 3p¹
31	Ga	Gallium	69.723	Solid	[Ar] 3d¹⁰ 4s² 4p¹
49	In	Indium	114.82	Solid	[Kr] 4d¹⁰ 5s² 5p¹
50	Sn	Tin	118.71	Solid	[Kr] 4d¹⁰ 5s² 5p²
81	Tl	Thallium	204.38	Solid	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹
82	Pb	Lead	207.2	Solid	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²
83	Bi	Bismuth	208.98	Solid	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³
84	Po	Polonium	209	Solid	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴
113	Nh	Nihonium	286	Solid (a theoretical prediction)	[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹
114	Fl	Flerovium	289	Solid (a theoretical prediction)	[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²
115	Mc	Moscovium	290	Solid (a theoretical prediction)	[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³
116	Lv	Livermorium	293	Solid (a theoretical prediction)	[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴

Frequently asked questions

Which elements are the post-transition metals?

The post-transition metals are Aluminum, Gallium, Indium, Tin, Thallium, Lead, Bismuth, Polonium, Nihonium, Flerovium, Moscovium and Livermorium.

How many elements are in the post-transition metals category?

The periodic table has 12 elements in the post-transition metals category.