[Wien] Electron density at the nucleus (Electron capture nuclear decay rate work)

[Lyudmila V. Dobysheva]

> regarding the reduction of 1s electron density at Be nucleus
>  due to the compression. 

I think that such a behavior is not against the nature. When Be is compressed, 
inner levels of neighboring atoms start to overlap in a more extent, the 
interaction changes profile of 1s radial function - spreads it. Why not?

By the way, I have looked through my old calculations under hands with 
changing the lattice parameter and found that, for other elements, inner 
levels behave the same way, also (Fe, Al, Ga) - the core contribution to 
density decreases with compression, unlike the valence contribution and the 
sum of them. 

Best regards
Lyudmila Dobysheva
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