A nucleus emits a ${\beta ^ - }$ particle.
What is the change to the proton number and to the nucleon number of the nucleus?
1 )
proton number: -1 / nucleon number: +1
2 )
proton number: 0 / nucleon number: -1
3 )
proton number: +1 / nucleon number: -1
proton number: +1 / nucleon number: 0
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!