| 14 | N + | 4 | He → | 17 | O + X |
| 7 | 2 | 8 |
In the equation above, the particles X is
-
A.
a proton -
B.
a neutron -
C.
an α – particle -
D.
a β – particle
Correct Answer: Option A
Explanation
for the conversion of mass 14 + 4 = 17 + x
∴ X = 18 – 17 = 1
for conservation pf charge:7 + 2 = 8 + y
y = 9 – 8 = 1
Thus, the element is 11X which is equal to hydrogen nucleus ( proton)