M. Billings North Surry High School The Bohr Atom… M. Billings North Surry High School

Electrons move around the nucleus in energy levels (orbits)

Each electron in an atom has an energy level where it should be located – its ground state.

If an electron absorbs enough energy (quantum), it can jump to a higher energy level –its excited state.

The electron will immediately fall back to its ground state releasing the energy….

The energy released will have a wavelength (type and color of light) determined by the quantum absorbed (the jump).

Each element will produce a different set of colors of light (spectrum) when energized….

Bohr’s equations only worked completely for Hydrogen

Why?...... A more complicated model was needed….