About 67,000 results
Open links in new tab
  1. Could diatomic helium exist? - Chemistry Stack Exchange

    Nov 29, 2016 · I know that $\ce {He2}$ (homonuclear diatomic helium) does not exist because its bond order is zero. Since the bond order of $\ce {He2+} = 1/2$, that means that the positive $\ce {He2+}$ …

  2. bond - Molecular orbital theory & predicting the stability of a ...

    Please note the diagram is for He2+ but the He-H is very similar Eg: Li + H; Li has 1s + 2s, while H has 1s. This mix to form a sigma orbital from H1s+Li2s, a sigma* orbital and H1s-Li2s, and a non bonding …

  3. molecular orbital theory - Chemistry Stack Exchange

    Nov 9, 2014 · Why does a collision between an excited helium molecule ($\ce {He^*}$) and a ground-state helium atom create $\ce {He2^*}$?

  4. Why He_2 molecule does not exist? Explain by MOT. - Toppr

    Click here👆to get an answer to your question ️ why he2 molecule does not exist explain by mot

  5. H_2 molecule exist but He_2 molecule does not. Why? - Toppr

    H 2 molecule exists because of it bond order, which is equal to one where as H e 2 molecule does not exist due to zero bond order. Bond order of these molecules can be calculated as follow:

  6. Justify this statement whether correct or incorrect . He2^+ has the ...

    May 14, 2019 · Justify this statement whether correct or incorrect . He2^+ has the same energy as two isolated He atoms [closed] Ask Question Asked 6 years, 7 months ago Modified 6 years, 7 months ago

  7. Topic: Can you predict if He2+ exists using Molecular Orbital Theory ...

    May 28, 2010 · I have a question here that asks me to predict if He 2+ exists using Molecular Orbital theory?

  8. Which of the statement is incorrect? - Toppr

    Comprehension given below is followed by some multiple choice questions. Each question has one correct option. Choose the correct option. Molecular orbitals are formed by the overlap of atomic …

  9. Why does He exist whereas He_2 does not? - Toppr

    Click here👆to get an answer to your question ️ why does he exist whereas he2 does not

  10. bond - Why is He2- unstable? - Chemistry Stack Exchange

    Feb 18, 2016 · 1 $\ce {He2-}$ according to MO theory should be possible with one electron in 2s sigma, but my professor said only at very low temperatures for some reason. Why only at low temperatures? …