Difference between revisions of "Proton"
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==Key Stage 5== | ==Key Stage 5== | ||
===Meaning=== | ===Meaning=== | ||
| − | A '''proton''' is a [[baryon]] made from 2 [[up-quark]]s and 1 [[down-quark]]. | + | A '''proton''' ('''p''') is a [[baryon]] made from 2 [[up-quark]]s and 1 [[down-quark]]. |
===About Protons=== | ===About Protons=== | ||
| + | : A [[proton]] is one of two [[baryon]]s found in the [[Atomic Nucleus|atomic nucleus]]. | ||
: [[Proton]]s have a [[Electrical Charge|charge]] of 1.60x10<sup>-19</sup> [[Coulomb]]s (the [[Elementary Charge|elementary charge]]) and a [[mass]] of 1.67x10<sup>-27</sup>kg. | : [[Proton]]s have a [[Electrical Charge|charge]] of 1.60x10<sup>-19</sup> [[Coulomb]]s (the [[Elementary Charge|elementary charge]]) and a [[mass]] of 1.67x10<sup>-27</sup>kg. | ||
: A [[proton]] is the most stable [[hadron]] with a [[Half Life|half life]] longer than the age of the [[Universe]]. | : A [[proton]] is the most stable [[hadron]] with a [[Half Life|half life]] longer than the age of the [[Universe]]. | ||
Revision as of 17:33, 18 July 2019
Key Stage 4
Meaning
The Proton is a positively charged particle found in the nucleus of an atom.
About Protons
- Protons are a type of nucleon.
- Protons have a relative atomic charge of +1 and a relative atomic mass of 1.
Key Stage 5
Meaning
A proton (p) is a baryon made from 2 up-quarks and 1 down-quark.
About Protons
- A proton is one of two baryons found in the atomic nucleus.
- Protons have a charge of 1.60x10-19 Coulombs (the elementary charge) and a mass of 1.67x10-27kg.
- A proton is the most stable hadron with a half life longer than the age of the Universe.
| Subatomic Particle | Quark-composition | Charge/e | Strangeness | Baryon Number | Lepton Number |
| \(uud\) | \(q=+1\) | \(S=0\) | \(b=+1\) | \(l=0\) | |
| \(\bar{u}\bar{u}\bar{d}\) | \(q=-1\) | \(S=0\) | \(b=-1\) | \(l=0\) |