SAM meaning in Chemistry ?

Answer: What is Spin Angular Momentum mean?

Spin is an intrinsic form of angular momentum carried by elementary particles, and thus by composite particles (hadrons) and atomic nuclei.

Spin is one of two types of angular momentum in quantum mechanics, the other being orbital angular momentum. The orbital angular momentum operator is the quantum-mechanical counterpart to the classical angular momentum of orbital revolution and appears when there is periodic structure to its wavefunction as the angle varies. For photons, spin is the quantum-mechanical counterpart of the polarization of light; for electrons, the spin has no classical counterpart.

The existence of electron spin angular momentum is inferred from experiments, such as the Stern–Gerlach experiment, in which silver atoms were observed to possess two possible discrete angular momenta despite having no orbital angular momentum. The existence of the electron spin can also be inferred theoretically from spin–statistics theorem and from the Pauli exclusion principle—and vice versa, given the particular spin of the electron, one may derive the Pauli exclusion principle.

Spin is described mathematically as a vector for some particles such as photons, and as spinors and bispinors for other particles such as electrons. Spinors and bispinors behave similarly to vectors: they have definite magnitudes and change under rotations; however, they use an unconventional "direction". All elementary particles of a given kind have the same magnitude of spin angular momentum, though its direction may change. These are indicated by assigning the particle a spin quantum number.

The SI unit of spin is the same as classical angular momentum (i.e. N·m·s or J.s or kg·m2·s−1). In practice, spin is given as a dimensionless spin quantum number by dividing the spin angular momentum by the reduced Planck constant ħ, which has the same dimensions as angular momentum, although this is not the full computation of this value. Very often, the "spin quantum number" is simply called "spin". The fact that it is a quantum number is implicit.

reference

Full Form	Category
Student Action Man	Academic & Science
Student Advisory Model	Academic & Science
Argentine Society of Medicine	Academic & Science
Sociedad Argentina de Medicina	Academic & Science
Society for American Music	Academic & Science
Student Art Movement	Academic & Science
Super Active Matter	Academic & Science
Slump After Mix	Academic & Science
Student Aid Management	Academic & Science
Student Access Module	Academic & Science
Students At Macquarie	Academic & Science
Student Athletic Mentor	Academic & Science
Single Abstract Method	Academic & Science
Southern Annular Mode	Academic & Science
Sample Analysis of Mars	Academic & Science
Student Assessment Manager	Academic & Science
Students Against The Mai	Academic & Science
Salamo	Airport Code
Sound Abatement Membrane	Business
Strategic Account Management	Business
Served Market Share	Business
Boston Beer, Inc. (Sam Adams)	Business
Society for Advancement of Management	Business
Site Assets Management	Business
Sisbro Ashley Manor	Business
Society for Airway Management	Business
Society of American Magicians	Business
Springfarm Architectural Mouldings	Business
Software Acquisition Management	Business
Sales, Advertising, and Marketing	Business
Segmented Addressable Market	Business
Service Available Market	Business
Serviceable Area Market	Business
Starcore International Mines, LTD.	Business
Self Adjusting Mattress	Business
Sewer Access Module	Business
Sales Access Module	Business
Social Access Management	Business Management
System for Award Management	Business Management
Student Alcohol Management	Business Management
Spin Angular Momentum	Chemistry
Serving Annual Members	Community
Social Accounting Matrix	Community
School Administration Manager	Community
Society for Adolescent Medicine	Community
Self Assessment Method	Community
Sports, Art, and Music	Community
Student Assistance Model	Community
Seattle Art Museum	Community
Ash Music	Community
Student Attendance Monitoring	Community
Senior Adult Ministries	Community
School Articulator Munich	Community
Single Adult Ministry	Community
Styles, Abilities, and Motivations	Community
Student Adult Mentorship	Community
Susan Allen Morgan	Community
Synchronous Access Mode (V.80)	Computer and Networking
Screen Activated Machine	Computer Hardware
Switch Adapted Mouse	Computer Hardware
Serial Access Memory	Computing
Scsi Architectural Model	Computing
Storage Access Method	Computing
Sequential Access Method	Computing
Stream Audio Manager	Computing
Software Access Menu	Computing
Software Access Module	Computing
Systems Acquisition Management	Computing
Security Access Multiport	Computing
Syndicated Audio Messaging	Computing
Scalable Architecture for Multimedia	Computing
System Adaptability Manager	Computing
Stand Alone Modem	Computing
Smart Atm Module	Computing
System Administration Manager	Computing
Simple Access Mode	Computing
Speech Aware Multimedia	Computing
Sprint Account Manager	Computing
Service Account Manager	Computing
Storage Area Manager	Computing
Service Availability Management	Computing
Strategic Systems for Adaptable Metacognition	Computing
Stm Access Module	Computing
Software Assurance Membership	Computing
Storage Archive Manager	Computing
Supplier Agreement Management	Computing
Service Assurance Management	Computing
Scalable Adsl Modem	Computing
Sequential Access Memory	Computing
Service Aware Manager	Computing
Sequential Access Model	Computing
Symantic Anti-virus for Macintosh	Computing
Super Anticipation Model	Computing
Skotos Active Markup	Computing
SCSI (Small Computer System Interface) Architecture Mode	Computing
Super Automated Machine	Computing
Samurai	Cryptocurrency
Samsunspor Fan Token	Cryptocurrency
Scanning Auger Microscopy	Electronics
Synthetic Audio Micro	Electronics
Substrates, Assembly, and Microsystems	Electronics
Self-assembled Monolayer	Electronics
Samna - Lotus Ami/ Ami Pro Text File	File Type
Smart Alert Move	General
Spectrum Allocation Manager	General
Sachs Automotive Mexico	General
Special Air Mission	General
Safety and Triggering Module	General
Sidewalk Alpha Male	General
Service Auto Mat	General
Sviluppo Motorist Meridionale	General
Seamless Autonomous Mobility	General
Signal Detect and Actuation Module	General
Societe Automobile de Marche	General
Shadow America	General
Suzuki Samurai	General
Surveillance Active d'Angle Mort	General
Situational Awareness Module	General
School of Automotive Machinists	General
Societe de l'Automobile et du Materiel	General
Significance Analysis of Microarrays	General
Security Access Manager	General
Sequence Alignment Map	General
Subscriber Artificial Module	General
Standard Allowed Minutes	General
Surface to Air Missiles	General
Structural Aluminum and Malleable	General
Semi Autonomous Motorcar	General
Standard Allowed Minute	General
Security Answer Man	General
Successive Approximation Model	General
Semi-Automated Mason	General
Strategically Altered Mutant	General
Secret Agent Man	General
Slow As Molasses	General
Sue Anne Marie	General
Susan Alicia Mary	General
Sanitation Aeration and Monitoring	General
Sanitation Aeration Monitoring	General
System Advisor Model	General
Serve America Movement	General
Stand Alone Marines	General
Serverless Application Model	General
Secret Asian Man	General
Self Assessment Manikin	General
Smart Approach to Marijuana	General
SHINee APink MAMAMOO	General
Space Available Mail	General
Special Action Model	General
Signal Activation Module	General
Signal Acquisition Module	General
Smooth Autofocus Motor	General
Salonul Auto Moto	General
Structural Anomaly Mapping	General
Sarmad	General
Saratoga Automobile Museum	General
Sample Analysis at Mars	General
Sigma Alpha Mu	General
Sequence Alignment and Modeling	General
Secret Agent Monkey	General
Stalking Awareness Month	General
Surface To Air Meat	General
Surface To Air Missle	General
Sensationally Arranged Megabytes	General
Study Atopic March	General
St Ack Machine	General
Shanghai Auto Museum	General
Samantha	General
Steering Axle Mass	General
Senior Adult Ministry	Governmental
South American Region	Governmental
Servicio Aeronautico Militar (Portuguese Military Air Service)	Governmental
Safety Always Matters	Governmental
Statements, Acts, Marriages	Governmental
South American Military	Governmental
Safe Assessment on Machine	Governmental
Save American Manufacturing	Governmental
Suspicious Activity Monitoring	Governmental
Suspicious Activity Monitor	Governmental
Smart A** Masochist	Internet
Service and Accounting Manager	Jobs
Security Account Manager	Jobs
Self-appointed Manager	Jobs
Skills Assessment Manager	Jobs
Security Accounts Manager	Jobs
Scriptable Artificial Mind	Medical
Small Android Model	Medical
Simulated Anesthesia Mannequin	Medical
Sentient Autonomous Mechanism	Medical
Systolic Anterior Motion	Medical
Severe Acute Malnutrition	Medical
Skin Analyzer Magnifier	Medical
Smart Approaches to Marijuana	Medical
Send A Message	Messaging
Stop Annoying Me	Messaging
Secret Admirer of Me	Messaging
Store and Move	Messaging
Special Airlift Mission	Military and Defence
Surface-to-air Missile	Military and Defence
Super-absorbent Material	Military and Defence
Sleep/activity Monitor	Military and Defence
Soldier Adaptation Model	Military and Defence
Software Asset Maintenance	Military and Defence
Special Air Missions	Military and Defence
Skill Allocation Module	Military and Defence
Salvage All Materials	Military and Defence
Storage Application Model	Networking
Scalable Adsl (asynchronous Digital Subscriber Line) Modem	Networking
Scalable Active Management	Networking
Square Aperture Matrix	Physics Related
Super Accelerator Machine	Physics Related
Salamo, Papua New, Guinea	Regional
Samaritan Aramaic	Regional
Saskatchewan, Alberta, Manitoba	Regional
Symantec Anti-virus for Macintosh	Softwares
Software Adaptation Management	Softwares
Safety Argument Manager	Softwares
Sofa Artwork Manager	Softwares
Sound Audio Motion	Softwares
Scheduling and Appointment Minder	Softwares
Software Asset Management	Softwares
Shuttle Attachment Manipulator	Space Science
System Activation and Monitoring	Space Science
Sun Acquisition Mode	Space Science
System Assurance Manage	Space Science
Sensor Actuator Module	Space Science
Safety and Maintenance	Space Science
Student Athlete Mentors	Sports
Student Athlete Mentor	Sports
Stand Against Me	Sports
Snowmobile Association of Massachusetts	Sports
Service Access Multiplexer	Telecommunication
Sme Access for Mobile	Telecommunication