Neils Bohr and Atomic Model

Front

Excited electrons

Back

Electrons that absorb energy and move to a higher orbit are considered "excited."

Front

Energy absorption by electrons

Back

Electrons absorb energy to move to a higher energy level.

Front

Energy emission by electrons

Back

Electrons emit energy as light when they return to a lower energy level.

Front

Lower energy light color

Back

Red light is associated with lower energy emission.

Front

Energy level changes in electrons

Back

Changes in electron energy levels are indicated by the color of emitted light.

Front

Thick bands of colors

Back

Fluorescent light tube spectrum

Front

Incandescent light bulb

Back

Type of light source with a continuous spectrum

Front

Formula for energy change in the Bohr model.

Back

The energy change (\Delta E) is given by \Delta E = hv = 13.6 [1/n_1^2 - 1/n_2^2] eV.

Front

Specific wavelengths in the Balmer series.

Back

The Balmer series includes wavelengths of 410.2 nm (violet), 434.1 nm (violet), and 486.1 nm (blue-green).

Front

Red spectral line in the Balmer series.

Back

The red spectral line in the Balmer series is at 656.3 nm.