इंटरनल पार्टिकल्स स्पेस इन मैक्सिमम इन
Answers
Answer:
A proton is a subatomic particle, symbol
p
or
p+
, with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron. Protons and neutrons, each with masses of approximately one atomic mass unit, are collectively referred to as "nucleons" (particles present in atomic nuclei).
Proton
Quark structure proton.svg
The quark content of a proton. The color assignment of individual quarks is arbitrary, but all three colors must be present. Forces between quarks are mediated by gluons.
Classification
Baryon
Composition
2 up quarks (u), 1 down quark (d)
Statistics
Fermionic
Interactions
Gravity, electromagnetic, weak, strong
Symbol
p
,
p+
,
N+
, 1
1H+
Antiparticle
Antiproton
Theorized
William Prout (1815)
Discovered
Observed as H+ by Eugen Goldstein (1886). Identified in other nuclei (and named) by Ernest Rutherford (1917–1920).
Mass
1.67262192369(51)×10−27 kg[1]
[citation needed]
938.27208816(29) MeV/c2[2]
1.007276466621(53) u[2]
Mean lifetime
> 2.1×1029 years (stable)
Electric charge
+1 e
1.602176634×10−19 C[2]
Charge radius
0.8414(19) fm[2]
Electric dipole moment
< 5.4×10−24 e⋅cm
Electric polarizability
1.20(6)×10−3 fm3
Magnetic moment
1.41060679736(60)×10−26 J⋅T−1[2]
1.52103220230(46)×10−3 μB[2]
2.79284734463(82) μN[2]
Magnetic polarizability
1.9(5)×10−4 fm3
Spin
1
/
2
Isospin
1
/
2
Parity
+1
Condensed
I(JP) =
1
/
2
(
1
/
2
+)