He

Li

Be

B

C

N

O

−E

Present work

2.900

7.3197

14.582

24.779

37.9484

55.625

74.795

Hartree-Fock [3]

2.8617

7.4332

14.573

24.529

37.688

54.400

74.809

Roy [26]

2.8973

7.221

14.221

23.964

36.953

53.407

73.451

−Z/r

Present work

6.853

17.054

33.447

56.728

88.447

128.915

178.317

Hartree-Fock [3]

6.749

17.115

34.072

58.143

88.649

127.326

176.324

−Ex

Present work

1.039

1.752

2.656

3.732

5.0416

6.527

8.223

Hartree-Fock [3]

1.026

1.781

2.667

3.744

5.045

6.596

8.174

Roy [26]

1.032

1.574

2.404

3.478

4.640

5.987

7.490

−Ec

Present work

0.0424

0.0659

0.093

0.1252

0.1637

0.2058

0.2524

Hartree-Fock [3]

0.0423

0.0435

0.094

0.111

0.1560

0.1890

0.2412

Roy [26]

0.0423

0.154

0.322

0.302

0.368

0.434

0.543

T

Present work

2.960

7.301

14.172

23.888

37.301

53.536

74.825

Hartree-Fock [3]

2.8617

7.433

14.573

24.529

37.688

54.401

74.810

Roy [26]

2.8974

7.382

14.844

25.300

37.924

53.664

73.444