A nuclide is represented by (_{32}^{70}B). Determine its neutron-proton ratio
-
A.
0.5 -
B.
0.8 -
C.
1.2 -
D.
1.5
Correct Answer: Option C
Explanation
The element B has a mass number of 70 with atomic number 32. Hence, B has 32 protons and (70-32) = 38 neutrons.
The neutron- proton ratio is 38:32 = (frac{38}{32} = 1.1875)
(approxeq 1.2)