1st ionisation energy
4:48
Added: 1 year ago
From: TeachingScienceUK
Views: 6,882
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  • Helpful video and I am grateful for it, but what on earth led you to believe that adding such irritating and loud music would be beneficial? 

    Malosovich 1 month ago

  • However good the facts and teaching were, I could not concentrate with the music playing!

    pushyboar 2 months ago

  • the music is very distracting...

    dancewithkara 4 months ago 10

  • Great help thanks :)

    MrMobiusMe 1 year ago 2

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