Examlex
All of the subshells in a given shell have the same energy in the hydrogen atom. In a many-electron atom, the subshells in a given shell do not have the same energy. Why?
Schist
A shiny, foliated, metamorphic rock generally containing abundant visible crystals of mica.
Thrust Fault
A type of fault where the hanging wall moves up relative to the footwall, often associated with the compression of Earth's crust.
Normal Fault
A type of geological fault where the hanging wall has moved downward relative to the footwall, usually due to extensional forces.
Cleavage
In geology, the tendency of a mineral to break along flat, parallel surfaces determined by its crystal structure.
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