Electromagnetic Spectrum and Spectroscopy Techniques

These flashcards cover key concepts related to the electromagnetic spectrum, spectroscopy techniques, and mass spectrometry as discussed in the lecture.

Electromagnetic Spectrum (EM Spectrum)

A range of all the different frequencies of electromagnetic radiation.

Frequency

The number of occurrences of a repeating event per unit time, measured in Hertz (Hz).

Wavelength

The distance between successive crests of a wave, typically measured in meters.

Ionization

The process of gaining or losing electrons to form ions.

Spectroscopy

A technique used to study the interaction between matter and electromagnetic radiation.

Mass Spectrometry (Mass Spec)

An analytical technique used to measure the mass-to-charge ratio of ions.

Percent Transmittance

A measure of the amount of light that passes through a sample.

Infrared (IR) Spectroscopy

A technique that uses infrared light to identify molecular vibrations.

Diagnostic Region in IR Spectroscopy

The region above 1500 cm⁻¹ where functional groups can be identified.

Fingerprint Region in IR Spectroscopy

The region below 1500 cm⁻¹ that contains many overlapping peaks unique to individual compounds.

Hooke's Law

A principle that describes the relationship between the force applied to a spring and its displacement.

Vibration and Bond Strength

The frequency of bond vibrations is related to the mass of the atoms and the strength of the bonds.