Thallium (Tl)

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post-transition metal

Element #81

TlSymbol
204.4Atomic mass (u)

Electron configuration

[Xe] 4f14 5d10 6s2 6p1

Electron shells

K: 2L: 8M: 18N: 32O: 18P: 3

Atomic structure

2D orbital diagram

K2e⁻L8e⁻M18e⁻N32e⁻O18e⁻P3e⁻Tl81

3D interactive model

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