Physics & Astronomy
energy levels
100%
life (durability)
80%
excitation
78%
ions
71%
isoelectronic sequence
67%
electron impact
61%
configurations
57%
wavelengths
54%
perturbation theory
47%
energy
46%
oscillator strengths
40%
tungsten
39%
configuration interaction
35%
gadolinium
34%
astrophysics
32%
fluorine
30%
magnetic dipoles
29%
quadrupoles
27%
valence
26%
electrons
25%
coefficients
25%
fusion
22%
electric dipoles
22%
nitrogen
22%
interactions
21%
performance tests
19%
bromine
19%
borders
16%
margins
16%
collisions
16%
lists
15%
transition probabilities
15%
atomic structure
15%
sulfur
14%
relativistic effects
14%
ion storage
14%
lithium
13%
fine structure
12%
nickel
12%
gold
12%
approximation
11%
hyperfine structure
11%
orbitals
10%
subroutines
10%
expansion
9%
physics
8%
heavy ions
8%
files
8%
self consistent fields
7%
atomic spectra
7%
Chemical Compounds
Many-Body Perturbation Theory
73%
Electron Impact Excitation
29%
Wavelength
27%
Energy
25%
Resonance
24%
Hyperfine Structure
20%
Oscillator Strength
19%
Energy Level Excitation
15%
Quantum Electrodynamics
14%
Tungsten
14%
Ion
13%
Nuclear Charge
12%
Error
11%
Rate of Transition
11%
Plasma
11%
Electron Correlation
9%
Ground State
6%