Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
4218Ar24   Argon
J(π)=0+
T1/2=32.90 y
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -34.422675
(0.005775)		 -36.310 2.450
BE 359.336 361.223
BE/A 8.556 8.601
<R2ch>1/2 = 3.4414 ± 0.0041 fm [3]
Charge-density Distribution [6]

β2= -0.032
β3= 0.000
β4= 0.000
β6= -0.020
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay-9986.39
β- - decay599.39
β+ - decay-10531.72
e-capture-9509.72
1p - decay-14404.49
2p - decay-26162.83
1n - decay-9426.47
2n - decay-15525.38
2β- - decay4124.64
β-,n-6934.40
β-,2n-17029.75
β-,d-12518.45
β-,t-16130.25
β-,α-7049.45
β-,n,α-13157.32
EC,p-22703.13
EC,2p-40926.29
EC,α-22178.05
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
β- endpoint energies
 
B(E2)↑ = 0.042 ( +11) e2b2,    β 0  = 0.273 ( +36)
 -92 -28

  
[1] National Nuclear Data Center, Evaluated Nuclear Structure Data File, https://www.nndc.bnl.gov/ensdf/.
[2] M. Wang, G. Audi, A.H. Wapstra, F.G. Kondev, M. MacCormick, X. Xu, and B. Pfeiffer, Chinese Physics C, 2012, vol. 36, pp. 1603-2014.
[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.
[4] P. Möller, A.J. Sierk, T. Ichikawa, H. Sagawa, Atomic Data and Nuclear Data Tables, 2016, vol. 109-110, pp. 1-204.
[5] N.J. Stone, https://www-nds.iaea.org/publications/indc/indc-nds-0658/; Atomic Data and Nuclear Data Tables, 2016, vol. 111-112, pp. 1–28.
[6] H. de Vries, C.W. de Jager, C. de Vries, Atomic Data and Nuclear Data Tables, 1987, vol. 36, pp. 495-536.
[7] B. Pritychenko, M. Birch, B. Singh, M. Horoi, Atomic Data and Nuclear Data Tables, 2016, vol. 107, pp. 1–139; 2017, vol. 114, pp. 371–374.
[8] T. Kibedi and R.H. Spear, Atomic Data and Nuclear Data Tables, 2002, vol. 80, pp. 35-82.