Ascent++ | occupy first and second shells

Assertion list for term "occupy first and second shells".

Results from Ascent++: 5

electron (`aspect` of atom) → CapableOf → occupy first and second shells	0.32
electron (`aspect` of hydrogen) → CapableOf → occupy first and second shells	0.30
electron → CapableOf → occupy first and second shells	0.29
electron (`aspect` of hydrogen atom) → CapableOf → occupy first and second shells	0.25
electron (`aspect` of ion) → CapableOf → occupy first and second shells	0.25