Atomic # + # of neutrons = ?# of protons + # of neutrons = ?mass # - atomic # = ?
category -Education- (Please help- so confused!)
The number of protons.
ooh sorry I hate those things
Try this site http://physics.tutorvista.com/modern-physics/atomic-mass.html I can't find it but I'm only in 7th grade so maybe this will help :) if u find it tell me the answers I should probably learn this now lol (protons + neutrons = atomic mass)