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  1. ... zero-point energy is large compared to thermal motions, Helium occupies a special role in condensed matter. The combination of...

    1 Answers · Science & Mathematics · 24/11/2009

  2. .... An alpha particle is the same as a helium nucleus (2-He-4). An alpha particle consists... doesn't make any more sense to say that a hydrogen atom loses a proton because a hydrogen nucleus IS a proton...

    3 Answers · Science & Mathematics · 02/11/2008

  3. ... How to remove electrons from a helium atom ? 1) have the helium at a sufficiently high temperature that... - they can easily be produced from helium gas and a suitable radioactive isotope when and where ...

    1 Answers · Science & Mathematics · 11/04/2013

  4. chemically helium cannot lose 2 valence electrons to bond with other atoms . well, i guess it has to deal with ionization energy. ionizaiton energy is...

    2 Answers · Science & Mathematics · 07/11/2008

  5. The question is not really why helium has neutrons, but why hydrogen does not...so small and why tritium is radioactive. So when helium is formed, the energy of the nucleus is very...

    2 Answers · Science & Mathematics · 21/08/2013

  6. Why would a helium atom have 10 electrons? It only has 2 protons, and as... shell, and 8 electrons on the second, allowing an atom to achieve what is called a stable octet configuration. Octet ...

    4 Answers · Education & Reference · 16/08/2011

  7. A,B, and D are all true. A helium atom on the sun and a helium atom on the earth have the same chemical properties...

    4 Answers · Science & Mathematics · 28/01/2007

  8. ... atom is approx 0.5 Angstroms at STP The radius of a helium atom is approx 0.3 Angstrom at standard temperature and pressure Hence...

    3 Answers · Science & Mathematics · 22/07/2011

  9. Q: An electron in a helium atom , What is the orbital notation for this electron? ...8 = 1.34 Hz. Q: If an excited atom emits photons with a wavelength of 544 nm how much...

    1 Answers · Science & Mathematics · 10/11/2008

  10. You need to know what phase the Helium will be in at the conditions in the problem: What is the...

    1 Answers · Science & Mathematics · 05/12/2008

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