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IB
E.1.2 Evidence from atomic spectra

IB Physics E.1.2 Evidence from Atomic Spectra Key Definitions

A.1 Kinematics

A.2 Forces and momentum

A.3 Work, energy and power

A.4 Rigid body mechanics (HL only)

A.5 Galilean and special relativity (HL only)

B.1 Thermal energy transfers

B.2 Greenhouse effect

B.3 Gas laws

B.4 Thermodynamics (HL only)

B.5 Current and circuits

C.1 Simple harmonic motion

C.2 Wave model

C.3 Wave phenomena

C.4 Standing waves and resonance

C.5 Doppler effect

D.1 Gravitational fields

D.2 Electric and magnetic fields

D.3 Motion in electromagnetic fields

D.4 Induction (HL only)

E.1 Structure of the atom

E.2 Quantum physics (HL only)

E.3 Radioactive decay

E.4 Fission

E.5 Fusion and stars

E.1.2 Evidence from atomic spectra Key Definitions

Definition

Absorption spectrum

Absorption spectrum is the range of frequencies of electromagnetic radiation readily absorbed by a substance by virtue of its chemical composition.

Definition

Emission spectrum

The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule transitioning from a high energy state to a lower energy state.

Definition

Photon

A photon is a tiny particle that comprises waves of electromagnetic radiation.

Key Definitions