Question
The composition of two atomic particles is given below:
|
|
$X$
|
$Y$
|
|
Protons
|
$8$
|
$8$
|
|
Neutrons
|
$8$
|
$9$
|
|
Electrons
|
$8$
|
$8$
|
- What is the mass number of $X?$
- What is the mass number of $Y?$
- What is the relation between $X$ and $Y?$
- Which element/ elements do they represent?
