Browse Definitions :
Definition

proton

A proton is a subatomic particle found in the nucleus of every atom.  The particle has a positive electrical charge, equal and opposite to that of the electron. If isolated, a single proton would have a mass of only 1.673 ? 10-27 kilogram, just slightly less than the mass of a neutron.

The number of protons in an element's nucleus is called the atomic number.  This number gives each element its unique identity.  In the atoms of any particular element, the number of protons in the nuclei is always the same.  An atom of simple hydrogen has a nucleus consisting of a single proton all by itself.  The nuclei of all other elements nearly always contain neutrons in addition to protons.

Protons need not be confined to the nuclei of atoms.  When protons are found outside atomic nuclei, they acquire fascinating, bizarre, and potentially dangerous properties, similar to those of neutrons in similar circumstances.  But protons have an additional property. Because they carry an electric charge, they can be accelerated by electric and/or magnetic fields.  High-speed protons, and atomic nuclei containing them, are emitted in large numbers during solar flares.  The particles are accelerated by the earth's magnetic field, causing ionospheric disturbances known as geomagnetic storms.

This was last updated in May 2008

Join the conversation

3 comments

Send me notifications when other members comment.

Please create a username to comment.

That is so great, it's very helpful in my true life, and I love your answer for science, great job!
Cancel
Thank you!
Cancel
I like this website. It gives such good definitions.
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • California Consumer Privacy Act (CCPA)

    The California Consumer Privacy Act (CCPA) is legislation in the state of California that supports an individual's right to ...

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

SearchSecurity

  • privilege creep

    Privilege creep is the gradual accumulation of access rights beyond what an individual needs to do his job. In IT, a privilege is...

  • BlueKeep (CVE-2019-0708)

    BlueKeep (CVE-2019-0708) is a vulnerability in the Remote Desktop (RDP) protocol that affects Windows 7, Windows XP, Server 2003 ...

  • endpoint detection and response (EDR)

    Endpoint detection and response (EDR) is a category of tools and technology used for protecting computer hardware devices–called ...

SearchHealthIT

SearchDisasterRecovery

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

  • business continuity software

    Business continuity software is an application or suite designed to make business continuity planning/business continuity ...

SearchStorage

  • Hadoop as a service (HaaS)

    Hadoop as a service (HaaS), also known as Hadoop in the cloud, is a big data analytics framework that stores and analyzes data in...

  • blockchain storage

    Blockchain storage is a way of saving data in a decentralized network which utilizes the unused hard disk space of users across ...

  • disk mirroring (RAID 1)

    RAID 1 is one of the most common RAID levels and the most reliable. Data is written to two places simultaneously, so if one disk ...

Close