Respuesta :
In the modern quantum mechanical theory of the atom, electron movement is thought to be a
- "Cloud" of negative charge occupying the space at a certain energy level.
So, option D is correct one.
What is modern quantum mechanical theory of the atom?
- The modern quantum mechanical theory of the atom is also known as quantum mechanical or mechanical model.
- This model states that there an electron in an atom with certain states or energies.
- This theory uses complex shapes of orbitals called electron clouds .
learn about quantum mechanics,
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