Which of the following concepts is shared by quantum theory and the Bohr model?

  

An electron absorbs and emits energy in units called quanta.

 

  

The electrons in an atom occupy regions called orbitals where the likelihood of finding them is highest.

 

  

Each electron in an atom can be described mathematically using a unique set of numerical values.

 

  

Electrons move about the nucleus in defined orbits.

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