Spectroscopy

This may be by molecules (molecular) or atoms (atomic)

Introduction to Spectroscopy techniques

Basic Principles

Electrical field

Wavelength

frequency

Energy relationships

Equation

Photons

Energy in molecules and atoms

Internal energy of molecules and atoms

Alteration

Photo slide here.

P2

Quantitative spectroscopy

On absorption of photons,

Flame atomic spectroscopy

The spray and fuel gases are carried to the flame.

The molecular associations in the vapour are broken - molecular association to form some free ground state atoms

Remember...

specific energy

Characteristic energy