<span>The representative particle for silicon is atom of silicon.
</span>Representative particles can be atoms, molecules, formula units or ions. Representative particles depend on the nature of the substance. Silicon is chemical element made of atoms.
For sodium chloride (NaCl) for example, representative particles are ions.
It will Rise/Float to the surface/top.
The alpha particle would be attracted to the atom<span />
The value of x is 38 and y is 104.
<span>B.The oxygen isotopes contain 8 electrons but each contains a different number of neutrons and protons - 8 and 10 respectively.</span>
