The solid line represents stable nuclei. A nucleus with an excess of protons and a tendency to decay with alpha particle emission is located at
A) 1
B) 2
C) 3
D) 4
E) 5

Question

The solid line represents stable nuclei. A nucleus with an excess of protons and a tendency to decay with alpha particle emission is located at
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Quizplus · Accepted Answer

According to the given graph, a nucleus with an excess of protons and a tendency to decay with alpha particle emission would lie above the stable nuclei line and to the left of the line of proton drip line. Option B represents such a nucleus.

The Solid Line Represents Stable Nuclei