1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Specific charge

  1. Sep 4, 2013 #1
    Hello, i have recently started doing AS level physics and i don't understand specific charge.
    My textbook stated ' An ion of Magnesium isotope (24 nucleon number, 12 proton number) has a charge of +3.2 x 10(to the power of negative 19) Coulombs.
    The charge of a proton is : 1.60 x 10(to the power of negative 19)
    As the ion has 12 protons in the nucleus, why isn't the charge (1.60 X 10^-19) x 12?
    If anybody could explain it would be much appreciated:)
  2. jcsd
  3. Sep 4, 2013 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor
    2016 Award

    Hint: if it isn't an ion, the net charge would be zero. You are forgetting the electrons surrounding the nucleus.

  4. Sep 4, 2013 #3
    Ohh, so is the relative charge of the ion +2?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Specific charge
  1. Specific charge (Replies: 7)

  2. Specific Enthalpy (Replies: 1)

  3. Specific Charge sum (Replies: 2)

  4. Specific Charge (Replies: 2)