fiveworlds Posted October 8, 2014 Share Posted October 8, 2014 If I have multiple atoms each with the same number of protons but composed of different elementary particles are they the same? Link to comment Share on other sites More sharing options...
Sensei Posted October 8, 2014 Share Posted October 8, 2014 (edited) If I have multiple atoms each with the same number of protons but composed of different elementary particles are they the same? Nucleus which has the same quantity of protons, but different mass (because it has different quantity of neutrons), is called isotope. http://en.wikipedia.org/wiki/Isotope Answer whether chemical properties are the same, depends on which element isotope you have in mind. for instance drinking exclusively heavy water D2O causes death of the most of mammals within a week or so. Edited October 8, 2014 by Sensei Link to comment Share on other sites More sharing options...
fiveworlds Posted October 8, 2014 Author Share Posted October 8, 2014 No as in protons are made of various quarks. Link to comment Share on other sites More sharing options...
swansont Posted October 8, 2014 Share Posted October 8, 2014 If I have multiple atoms each with the same number of protons but composed of different elementary particles are they the same? What different elementary particles did you have in mind? If they don't form protons and neutrons, then it's tough to call them atoms. Link to comment Share on other sites More sharing options...
fiveworlds Posted October 9, 2014 Author Share Posted October 9, 2014 What different elementary particles did you have in mind? If they don't form protons and neutrons, then it's tough to call them atoms. I don't know if you would call them protons though that's the thing. All I got for protons were composed of up,up,down quarks for an overall charge of +1. However the top,top,bottom quarks have the same charge and so would charmed,charmed,strange etc. One video said that any other than uud was unstable. Link to comment Share on other sites More sharing options...
swansont Posted October 9, 2014 Share Posted October 9, 2014 I don't know if you would call them protons though that's the thing. All I got for protons were composed of up,up,down quarks for an overall charge of +1. However the top,top,bottom quarks have the same charge and so would charmed,charmed,strange etc. One video said that any other than uud was unstable. Yes, that's true. Any particles comprised of these other quarks have exceedingly short lifetimes. The only one that has a relatively long lifetime is if you have udd; the energy difference is small and it lasts around 15 min on average. That's a neutron. You can keep it around longer if you put it in a bound state with some protons and other neutrons such that it doesn't have an available lower-energy state. Then it can't decay. Other three-quark combinations (baryons) have names (pairs have names, too; those are mesons) http://en.wikipedia.org/wiki/List_of_baryons People have succeeded in replacing one nucleon with a baryon that has a strange quark in it (those last the longest), known as a hyperon, to make a hypernucleus, but I don't know if they have been able to look at its atom-like behavior or do chemistry with it. http://en.wikipedia.org/wiki/Hypernucleus Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now