Table 3. Core Electron Binding Energies from ΔSCF Calculations Based on Equation 3 and the SCAN Functional and from Calculations where a G₀W₀ or G₀W₀Γ Correction Has Been Applied to ϵ_max in Equation 3^a.

Solid	Core level	EB Expt.	EBSCAN	Error		Error		Error
Li	Li 1s	54.85	54.87	0.02	54.68	–0.17	54.85	0.00
Be	Be 1s	111.85	111.91	0.06	111.58	–0.27	112.34	0.49
Na	Na 1s	1071.75	1071.59	–0.16	1071.28	–0.47	1071.70	–0.05
Na	Na 2p	30.51	30.66	0.15	30.35	–0.16	30.77	0.26
Mg	Mg 1s	1303.24	1303.26	0.02	1302.82	–0.42	1303.48	0.24
Mg	Mg 2p	49.79	49.74	–0.05	49.30	–0.49	49.96	0.17
Graphite	C 1s	284.41	284.19	–0.22	283.77	–0.64	284.53	0.12
BeO	Be 1s	110.00	110.78	0.78	109.15	–0.85	109.54	–0.46
BeO	O 1s	527.70	528.83	1.13	527.20	–0.50	527.59	–0.11
hex-BN	B 1s	188.35	188.44	0.09	187.41	–0.94	188.02	–0.33
hex-BN	N 1s	396.00	396.36	0.36	395.33	–0.67	395.94	–0.06
Diamond	C 1s	284.04	284.36	0.32	283.30	–0.74	284.08	0.04
beta-SiC	Si 2p	99.20	99.19	–0.01	98.39	–0.81	99.11	–0.09
beta-SiC	C 1s	281.55	281.44	–0.11	280.64	–0.91	281.36	–0.19
Si	Si 2p	99.03	99.17	0.14	98.65	–0.38	99.36	0.33
Mean error:				0.17		–0.56		0.02
Mean absolute error:				0.24		0.56		0.19

^aIn this case the correction consists of two parts: ΔE_PBE@SCAN shifts a binding energy onto a scale where the zero is defined by the position of the VBM predicted by PBE, and () shifts it further onto a scale where the zero is defined by the position of the VBM predicted by G₀W₀@PBE (G₀W₀Γ@PBE). All energies are given in eV.