Which of the following is unstable? Why?

1.neutron

2.proton

3.electron

4.alpha particle

  

Asked by arpitt682 | 17th Dec, 2019, 10:52: AM

Expert Answer:

Neutron. 
 
When an unstable nucleus contains more neutrons than protons a neutron change into a proton by emitting an electron. This emitted electron is called beta particle and process is known as beta emission. 

Answered by Shiwani Sawant | 17th Dec, 2019, 06:34: PM