Changes

<math>z = 92.1<\math>

The [[element]] is [[Uranium]].

| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''

<math>z = 24.9</math>

There are 25 [[proton]]s so the [[element]] is [[Manganese]].

|}