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How many electron volts are in 1 GeV?

Question #1680. Asked by abba.
Last updated Apr 20 2023.

Answer has 2 votes

Answer has 2 votes.
1 billion

Apr 21 2000, 5:39 AM
Answer has 2 votes
21 year member
2091 replies

Answer has 2 votes.
1 billion - 1,000,000,000

In particle physics, the standard unit is the unit of energy GeV. One eV (electron Volt) is the amount of energy that an electron gains when it moves through a potential difference of 1 Volt (in a vacuum). G stands for Giga, or 10^9. Thus a GeV is a billion (in US counting) electron Volts. The mass-energy of a proton or neutron (at rest) is approximately 1 GeV.

Feb 22 2004, 9:07 AM
zbeckabee star
Answer has 13 votes
Currently Best Answer
zbeckabee star
18 year member
11752 replies avatar

Answer has 13 votes.

Currently voted the best answer.
A GeV is a billion (in US counting) electron Volts.

An EV unit of energy commonly used in atomic and nuclear physics, equal to the energy gained by an electron (a charged particle carrying unit electronic charge when the electrical potential at the electron increases by one volt). The electron volt equals 1.602 × 10-12 erg. The abbreviation MeV indicates 106 (1,000,000) electron volts and GeV, 109 (1,000,000,000).

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Response last updated by gtho4 on Apr 20 2023.
Jan 29 2008, 3:29 PM
MonkeyOnALeash star
Answer has 3 votes
MonkeyOnALeash star

Answer has 3 votes.
Just for the record...Prior to the popular usage of the computer term "gigabyte", the prefix was pronounced by the scientific community as it was pronounced in "Back to the Future", jiga.


- /ji'ga/ or /gi'ga/ pref.


Jan 29 2008, 11:16 PM
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