An atomic nucleus denoted by $_{Z}^{A} X$ emits an $α - p a r t i c l e$ . Write an equation to show the formation of the daughter product.
A certain radioactive nucleus emits a particle that leaves it unchanged but increases its atomic number by one. Identify the particle and write its symbol.
[3 MARKS]

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Solution

Equation: 2 Marks
Identification: 1 Mark

The equation is :
$_{Z}^{A} X P a r e n t n u c l e u s α - p a r t i c l e - ----- \to \frac{_{Z - 2}^{A - 4} H e (α - p a r t i c l e)}{D a u g h t e r n u c l e i}$
The particle is mass O and atomic number -1 It is beta particle $(_{- 1}^{0} β)$ .
$_{6}^{14} C -_{- 1}^{0} β \to_{7}^{14} N$

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An atomic nucleus denoted by AZX emits an α−particle. Write an equation to show the formation of the daughter product. A certain radioactive nucleus emits a particle that leaves it unchanged but increases its atomic number by one. Identify the particle and write its symbol. [3 MARKS]

Equation: 2 Marks Identification: 1 Mark The equation is : AZXParent nucleusα−particle−−−−−−→A−4Z−2He(α−particle)Daughter nuclei The particle is mass O and atomic number -1 It is beta particle (0−1β). 146C−0−1β→147N