Go Back   Physics Help Forum > College/University Physics Help > Nuclear and Particle Physics

Nuclear and Particle Physics Nuclear and Particle Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Oct 26th 2014, 08:42 AM   #1
Senior Member
 
Join Date: Jun 2014
Posts: 306
ion or neutral atom?

An atom of 28_13 AI decays into stable nuclide 28_14 Si by emitiing a beta particle.
What's 28_14 Si ?
the ans given is positive ion?

in my opinion, it should be a neutral atom... which is correct?
ling233 is offline   Reply With Quote
Old Oct 26th 2014, 11:07 AM   #2
Physics Team
 
ChipB's Avatar
 
Join Date: Jun 2010
Location: Morristown, NJ USA
Posts: 2,310
If the original Al atom is neutral, then by emitting a beta particles (which turns a neutron into a proton) the resulting Si atom will have one more proton than previously. The electron that's emitted (the beta particle) is not captured by the Si atom, hence it the Si atom is an ion with charge of +1.

Last edited by ChipB; Oct 26th 2014 at 11:09 AM.
ChipB is offline   Reply With Quote
Reply

  Physics Help Forum > College/University Physics Help > Nuclear and Particle Physics

Tags
atom, ion, neutral



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
Arcing ground phenomenon in Isolated neutral system titangsu Advanced Electricity and Magnetism 0 Aug 7th 2014 09:17 AM
hydrogen atom homertyson Quantum Physics 1 Mar 8th 2013 09:11 AM
hydrogen atom topsquark Quantum Physics 0 Mar 8th 2013 08:07 AM
Live and Neutral wire creax4 Electricity and Magnetism 1 Jun 19th 2012 09:35 AM
A neutral metal rod in a uniform magnetic field... ZergLurker Advanced Electricity and Magnetism 1 Apr 12th 2010 11:43 PM


Facebook Twitter Google+ RSS Feed