determine which statement is true.\na electro...
determine which statement is true.\na electrons travel around the nucleus in circular orbits.\nb the bohr atom is the model currently accepted for electrons in atoms.\nc an electrons position and energy (momentum) can be know with certainty simultaneously.\nd currently, scientists know the energies of electrons but only approximate areas (orbitals) where the electrons are probably located.
Answer
# Brief Explanations:
- Option A: Electrons do not travel in circular orbits. The quantum mechanical model shows that electrons are in orbitals (regions of probability).
- Option B: The Bohr model is not the currently accepted model. The quantum mechanical model is more accurate.
- Option C: According to the Heisenberg uncertainty principle, an electron's position and momentum cannot be known simultaneously with certainty.
- Option D: In the quantum mechanical model, scientists know the energies of electrons (quantized energy levels) and only approximate areas (orbitals) where electrons are probably located.
# Answer:
D. Currently, scientists know the energies of electrons but only approximate areas (orbitals) where the electrons are probably located.