1. Hey Guest! Check out the 3 MCAT Study Plan Options listed in the 'stickies' area at the top of the forums (BoomBoom, SN2ed, and MCATJelly). Let us know which you like best.

    Also, we now offer a MCAT Test-Prep Exhibitions Forum where you can ask questions directly from the test-prep services.
    Dismiss Notice
  2. Dismiss Notice
  3. Download free Tapatalk for iPhone or Tapatalk for Android for your phone and follow the SDN forums with push notifications.
    Dismiss Notice
Dismiss Notice

Interview Feedback: Visit Interview Feedback to view and submit interview information.

Interviewing Masterclass: Free masterclass on interviewing from SDN and Medical College of Georgia

Dismiss Notice
Hey Texans—join us for a DFW meetup! Click here to learn more.

Radioactive Decay Review....

Discussion in 'MCAT Discussions' started by chandler742, Aug 11, 2002.

  1. chandler742

    chandler742 Senior Member
    7+ Year Member

    Joined:
    Jun 11, 2002
    Messages:
    121
    Likes Received:
    0
    Let's suppose that a massive element has undergone a radioactive decay. The new element has the same mass but the atomic number decreased by one.

    What other particle was emitted in this decay?

    A) Alpha partice
    B) Positron
    C) Electron
    E) Gamma Ray

    Case #2
    What if the atomic number and mass number stayed the same?


    Case #3
    What if the atomic number increased by one and the mass number stayed the same?

    Good Luck on the MCAT. I'll be later in the week.
     
  2. Note: SDN Members do not see this ad.

  3. eurotrash

    eurotrash Member
    7+ Year Member

    Joined:
    Aug 11, 2002
    Messages:
    39
    Likes Received:
    0
    positron, gama, beta
     
  4. chandler742

    chandler742 Senior Member
    7+ Year Member

    Joined:
    Jun 11, 2002
    Messages:
    121
    Likes Received:
    0
    right, right, and close.


    keep in mind that a positron is considered a Beta particle too. An electron is beta - and positron is beta +.

    Also to account for the conservation of momentum neutrino and anti neutrino escape in the radioactive decay.

    Anti-neutrino leaves with electon.
    Neutrino leaves with positron.

    Mneumonic. (A)lphabetically an atom is made of (e)lectrons,
    :thumbdown:eutrons, and (p)rotons(AENP).

    AENP-> Anti-neutrino=electron, neutrino=positron.

    This is what I used, if it doesn't work disregard.

    I'm off. Later.
     
  5. freakazoid

    freakazoid Guy Friend Extraordinaire
    7+ Year Member

    Joined:
    Jun 16, 2002
    Messages:
    217
    Likes Received:
    0
    I'm gone for a day and end up not getting to answer your questions before you answer them for real. :) Itz kool though, I just don't look at what other people put anyways. Good job, chandler. Keep 'em coming. :clap:
     

Share This Page