The Modern Atom. Emission Line Spectra When an electrical voltage is passed across a gas in a sealed tube, a series of narrow lines is seen. These lines.
Electrons in the Atom l Thomson: discovered the electron l Rutherford: electrons like planets around the sun l Experiments: bright – line spectra of the.
Periodic Table: Why the repetition
Section 5.3. Neon advertising signs are formed from glass tubes bent in various shapes. An electric current passing through the gas in each glass tube.
Physics and the Quantum Mechanical Model
