28Si-Silicon


 
28Si has 14 protons and 14 neutrons.
28Si is a stable isotope.
The mass excess of 28Si is -21492.79711 with an uncertainty of ±0.00051.


The mass was measured using a Penning Trap and the related equations include:
Influence				 Equations
       48.4%		  	     C2H4-28Si 1   
      31.5%			 13C2H2-28Si 1  
     10.2%			         31P-28SiH3 2  

    
	
	
	
	
	
	


Reference

1. Matthew Redshaw, Joseph McDaniel, and Edmund G. Myers (2008), Dipole Moment of PH+ and the Atomic Masses of 28Si, 31P by Comparing Cyclotron Frequencies of Two Ions
Simultaneously Trapped in a Penning Trap  Physical Review Letters  100(9)
 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.093002

2. Redshaw, M., McDaniel, J., Shi, W., & Myers, E. G. (2006) Mass ratio of two ions in a Penning trap by alternating between the trap center
and a large cyclotron orbit.  International Journal of Mass Spectrometry,  251(2-3 SPEC. ISS.)
https://doi.org/10.1016/j.ijms.2006.01.015