Nuclear Chemistry I

แชร์
ฝัง
  • เผยแพร่เมื่อ 27 ธ.ค. 2024

ความคิดเห็น • 17

  • @KarbineKyle
    @KarbineKyle 15 ปีที่แล้ว

    Awesome! Very nice! I wish I had more teachers like you back in middle or high school! :) 5/5!

  • @chemdog8
    @chemdog8  12 ปีที่แล้ว

    Gamma emission takes place when a nuclear reaction produces a product nucleon in an excited state, which relaxes back to the ground state by emission of a gamma ray. If the excited state has a short lifetime, the gamma emission takes place essentially at the same time as the main reaction (e.g. alpha emission). However, the lifetime of the excited state may be considerably longer.

  • @chemdog8
    @chemdog8  12 ปีที่แล้ว

    Yes, it's exactly the same as with electronic transitions except that the energy differences between nuclear states are much larger, so the gamma rays (ordinary electromagnetic waves) have much shorter wavelengths than visible light.

  • @stealthtank91
    @stealthtank91 12 ปีที่แล้ว

    Thank you for your response. I have only taken basic chemistry, so I'm new to these concepts. Is it safe to say that gamma radiation is electromagnetic? And similar if not the same as when an electron is brought from (e.g. n=4 to n=3)? Excited to ground state?

  • @stealthtank91
    @stealthtank91 12 ปีที่แล้ว

    Very informative videos. Im just curious, what does the atom lose in a gamma emission? The photon has to be created out of something right?

  • @chemdog8
    @chemdog8  15 ปีที่แล้ว

    If two atoms of the same element (same number of protons) have different numbers of neutrons, then they are said to be different ISOTOPES of the element.
    Example: Chlorine-35 and Chlorine 37 are different isotopes because they both have 17 protons, but one has 18 neutrons and the other 20.

  • @sewcouture97
    @sewcouture97 12 ปีที่แล้ว

    thank you..have a big test today and i really need to pass it :)

  • @moinlovesyou
    @moinlovesyou 15 ปีที่แล้ว

    good job prof.!!!,
    can u help me w/ physics,
    because, next year m taking it &, i heard that its hard.
    please reply

  • @KSATica
    @KSATica 12 ปีที่แล้ว

    I think physics only talks about story problems and how it can correlate to our reality. I don't know much about it and someone just told me its like basic algebra but a lot of story problems as far as I know

  • @pinkshoez21
    @pinkshoez21 15 ปีที่แล้ว

    These videos are awesome!!! Im in AP Chemistr student in my senior year in high school and my book is gigantic and confusing, and your videos explain it so well!! I plan on majoring in Biochem in college :)

  • @chemdog8
    @chemdog8  15 ปีที่แล้ว

    All kinds of radiation kill cells and will kill a human if enough are absorbed. The main difference between alpha radiation and gamma is that each alpha particle kills many more cells than each gamma ray, but alphas are easier to block. Betas lie somewhere in the middle on damage and ease of blocking.

  • @KSATica
    @KSATica 12 ปีที่แล้ว

    There are some very useful videos like this one for example Jason Gibson physics tutor which I bought at amazon and find this somewhat useful and helpful for studying physics but I'm still looking for other videos that may explain it and I mean physics in a easier way or creativitly. But other than that I don't not think Physics is at all hard it is like playing the piano some do better playing by reading the notes or listening to the sound but whatever works for ya I suppose.

  • @pkdababe
    @pkdababe 13 ปีที่แล้ว

    @moinlovesyou I barely study for physics and im coming second. just pay attention in class and make sure you understand and you will be alright :)

  • @chemdog8
    @chemdog8  15 ปีที่แล้ว

    Physics IS hard, but I'm concentrating mainly on chemistry for now, sorry!

  • @dteo827
    @dteo827 11 ปีที่แล้ว +1

    How many of us high schoolers didn't understand this?