Table V

Experimental wavelengths of emission lines of thorium and uranium in the isoelectronic sequences of cobalt, copper and zinc.

Isoelectron. seq.

Transition

Spectrum

l (nm)

Co I

3p⁶ 3d^{9 2}D_5/2 - 3p⁵ 3d¹⁰ ²P_3/2

U LXVI

1.7561

4s ²S_1/2 - 4p ²P_3/2

Th LXII
2.8990

Cu I

4s ²S_1/2 - 4p ²P_3/2

U LXIV

2.6400

4p ²P_1/2 - 4d ²D_3/2

Th LXII

2.5180

Cu I

4p ²P_3/2 - 4d ²D_5/2

Th LXII

4.6830

4d ²D_5/2 - 4f ²F_7/2

Th LXII

53.154

Zn I

4s² ¹S₀ - 4s4p ¹P₁

Th LXI

28.703

4s² ¹S₀ - 4s4p ¹P₁

U LXIII

26.175

Isoelectron. seq.	Transition	Spectrum	l (nm)
Co I	3p⁶ 3d^{9 2}D_5/2 - 3p⁵ 3d¹⁰ ²P_3/2	U LXVI	1.7561
	4s ²S_1/2 - 4p ²P_3/2	Th LXII	2.8990
Cu I	4s ²S_1/2 - 4p ²P_3/2	U LXIV	2.6400
	4p ²P_1/2 - 4d ²D_3/2	Th LXII	2.5180
Cu I	4p ²P_3/2 - 4d ²D_5/2	Th LXII	4.6830
	4d ²D_5/2 - 4f ²F_7/2	Th LXII	53.154
Zn I	4s² ¹S₀ - 4s4p ¹P₁	Th LXI	28.703
	4s² ¹S₀ - 4s4p ¹P₁	U LXIII	26.175