How Many Elements Formed from Primal Plasma?

  • Thread starter Thread starter wolram
  • Start date Start date
  • Tags Tags
    Elements Plasma
AI Thread Summary
The discussion centers on the formation of elements from primal plasma, questioning whether any undiscovered elements exist beyond those currently detected. It clarifies that all atomic elements up to stability limits have been created, with heavier elements formed in stars, as indicated by big bang nucleosynthesis. The conversation also touches on theoretical particles like WIMPs that may remain unobserved. Intergalactic gas clouds provide evidence supporting big bang nucleosynthesis predictions, with heavier elements found in these structures attributed to stellar processes. Overall, the focus is on the origins and current understanding of elemental formation in the universe.
wolram
Gold Member
Dearly Missed
Messages
4,410
Reaction score
555
From the primal plasma how many elements (could) have formed that are not detected? or is the larder full.
 
Space news on Phys.org


Do you mean fundamental particles or atomic elements?

All the kinds of atoms got made up to the limits of stability with humans playing a part in the effort...http://www.pbs.org/wgbh/nova/sciencenow/3313/02.html

If you mean particles, there are theories predicting wimps and other exotica that could be there and not yet observed.
 


According to big bang nucleosynthesis all elements heavier than Lithium were formed in stars.
 


I meant elements as in the periodic table.
 


Lithium is the heavy weight element from the big bang, as Allday noted. Intergalactic gas clouds strongly corroborate predictions of BB nucleosynthesis. The sprinkling of heavier elements in these enormous structures are believed to be stellar byproducts.
 
https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
Why was the Hubble constant assumed to be decreasing and slowing down (decelerating) the expansion rate of the Universe, while at the same time Dark Energy is presumably accelerating the expansion? And to thicken the plot. recent news from NASA indicates that the Hubble constant is now increasing. Can you clarify this enigma? Also., if the Hubble constant eventually decreases, why is there a lower limit to its value?

Similar threads

Replies
6
Views
6K
Replies
7
Views
2K
Replies
2
Views
2K
Replies
4
Views
1K
Replies
12
Views
2K
Replies
26
Views
7K
Back
Top