PERIODIC ATOMIC MASS PROGRESSION OF ISOTOPES
Copyright 1983,1993, 1997 2001 by Gerald E Mowery
No claim for government information
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                                                PERIODIC PAIRED ISOTOPE PROGRESSION
--------------------------------------------------------------------------------------------------------------------------*(126)****(128)****(130)****(132)* 132.905447 **(134)****(136)****(138)****(140)**** Cs * 133
************************************
100.0%************************************ 132.905447
------------------------------------------------------------------------------------------------------------------------
*(128)****
(130)****(132)****(134)* 134.905683 **(136)****(138)****(140)****(142)**** Ba *135
137 7.854*.106%***.101%**2.417%****6.592%****7.854%**71.70********************* 137.340
--------------------------------------------------------------------------------------------------------------------------
*(130)****(132)****(134)****(136) *(136.906) **(138)****(140)****(142)****(144)****** La *137  
*
139  99.10%*********************************0.090%%***************************** 138.91 
------------------------------------------------------------------------------------------------------------------------
-
*(132)****(134)****
(136)****(138)* (138.907)**(140)****(142)****(144)****(146)****** Ce *139
******************.185%***.251%****000%***88.45%**11.114%******************** 140.112
------------------------------------------------------------------------------------------------------------------------
*(134)****(136)****(138)****(140)*
140.907648 **(142)****(144)****(146)****(148)**** Pr * 141
***********************************
100.0%************************************ 140.907648
---------------------------------------------------------------------------------------------------------------------------

*(136)****(138)****(140)****(142)* 142.909810 **(144)****(146)****(148)****(150)**** Nd *143
145 8.30%****************27.20%***12.20%*****23.80**17.20%*5.700%*5.600%******** 144.24
------------------------------------------------------------------------------------------------------------------------- 

*(138)****(140)****(142)****(144)* 144.912744 **(146)****(148)****(150)****(152)****
*********************************************************************************
Pm *145
------------------------------------------------------------------------------------------------------------------
<146>
*(140)****(142)****(144)****(146)* 146.915134 **(148)****(150)****(152)****(154)**** Pm * 147
*************************************************************************************
--------------------------------------------------------------------------------------------------------------------------*(142)****
(144)****(146)****(148)* 148.917180 **(150)****(152)****(154)****(156)**** Sm *149
*147-14.99%*23.80%*?*****11.24%***13.82%****7.380%***26.75%**22.75 ************* 150.35
-------------------------------------------------------------------------------------------------------------------------
*(144)****(146)****(148)****(150)*
150.919846 **(152)****(154)****(156)****(158)****
************************************
47.81%**************************************** Eu *151
------------------------------------------------------------------------------------------------------------------- 
151.96
*(146)****(148)****(150)****(152)* 152.921220 **(154)****(156)****(158)****(160)****** Eu *153
************************************
52.19%*************************************
------------------------------------------------------------------------------------------------------------------------*(148)****(150)****
(152)****(154)* 154.922619 **(156)****(158)****(160)****(162)******
*****************
.200%***2.180%***14.80%****************************************Gd *155
--------------------------------------------------------------------------------------------------------------------
157.25
*(150)****(152)****(154)****
(156)* 156.923957 **(158)****(160)****(162)****(164)****  Gd *157
**************************
20.47%***15.65%*****24.84%**21.86%****
--------------------------------------------------------------------------------------------------------------------------

*(152)****(154)****(156)****(158)* 158.925343 **(160)****(162)****(164)****(166)**** Tb *159
*************************************
100.0%*********************************** 158.925343
-------------------------------------------------------------------------------------------------------------------------*(154)****
(156)****(158)****(160)* 160.926930 **(162)****(164)****(166)****(168)*********
*********
.060%***.100%***2.340%***18.91****************************************** Dy *161
---------------------------------------------------------------------------------------------------------------------
162.50
*(156)****(158)****(160)****(162)* 162.928728 **(164)****(166)****(168)****(170)****** Dy *163
**************************
25.51%***25.51%*****28.18%**********************************  
---------------------------------------------------------------------------------------------------------------------------

*(158)****(160)****(162)****(164)* 164.930319 **(166)****(168)****(170)****(172)***** Ho *165
************************************
100.0%************************************ 164.930319
--------------------------------------------------------------------------------------------------------------------------

*(160)****(162)****(164)****(166)* 166.932045 **(168)****(170)****(172)****(174)****** Er *167
*********
.140%****1.610%*33.61%**22.93%*****26.78%**14.93*********************** 167.26
----------------------------------------------------------------------------------------------------------------------------

*(162)****(164)****(166)****(168)* 168.934211 **(170)****(172)****(174)****(176)**** Tm * 169
***********************************
100.0%************************************** 168.934211
----------------------------------------------------------------------------------------------------------------------------*(164)****(166)****(168)****(170)*
(170.936  ) **(172)****(174)****(176)****(178)****** Du *171
************************************************************************************
<171>
-------------------------------------------------------------------------------------------------------------------------

*(166)****(168)****(170)****(172)* (172.938  ) **(174)****(176)****(178)****(180)***** Di * 173
*********************************
100.0%***************************************** 172.93822
--------------------------------------------------------------------------------------------------------------------------
*(168)****(170)****(172)****(174)* (174.940) **(176)****(178)****(180)****(182)******* Nm* 175
**********************************************************************************   <175>   
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CHEMISTRY ==
Element components of Mass,  Energy  and Configurations and Type are Paired with themselves, and progress in a periodic manner.
FOURTH ENERGY LEVEL
CLICK HERE FOR FIFTH  ENERGY LEVEL
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