Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
4120Ca21   Calcium
J(π)=7/2-
T1/2=9.94e+4 y
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -35.137887
(0.000138)		 -36.340 2.550
BE 350.415 351.617
BE/A 8.547 8.576
<R2ch>1/2 = 3.4782 ± 0.0018 fm [3]
Charge-density Distribution [6]

β2= -0.021
β3= 0.000
β4= 0.012
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-6615.14
β- - decay-6495.44
β+ - decay-600.38
e-capture421.62
1p - decay-8891.40
2p - decay-16473.70
1n - decay-8362.80
2n - decay-23997.78
2β- - decay-19440.28
β-,n-22685.82
β-,2n-37107.74
β-,d-20990.85
β-,t-28029.15
β-,α-12762.55
β-,n,α-28216.99
EC,p-7387.03
EC,2p-19915.73
EC,α-5801.30
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
  
σ (b)
Capture 4.00
 
μ (nm) Q (b) E* (keV)
+2.18(15)3830
-1.61(2)0
-1.5942(7)0
-1.594781(9)0
-0.0665(18)0
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.