When a stable atom gains or loses its electrons then that’s when it becomes the ion.
Use the equation q=ncΔT.
q= heat absorbed our released (in this case 1004J)
n= number of moles of sample ( in this case 2.08 mol)
c=molar heat capacity
ΔT=change in temperature (in this case 20°C)
You have to rewrite the equation for c.
c=q/nΔT
c=1004J/(2.08mol x 20°C)
c=24.1 J/mol°C
I hope this helps
Thomson's model included Protons and Electrons. His model is referred to as 'Plum Pudding' because of it.
Yes you do cause its more explanation to
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