Answer:
Sr, Mg, P, F
Explanation:
The trend for decreasing radii size is up and to the right of the Periodic Table.
I think the answer is that they both don’t have a full outer shell
i hope this helps
Magnesium is divalent. This means that one magnesium atom needs to lose 2 electrons in order to become stable.
Chlorine, on the other hand, is monovalent. This means that one chlorine atom needs to gain one electron in order to become stable.
Based on this, one magnesium atom will combine with two chlorine atoms, where the magnesium loses two electrons, one for each chlorine.
The formula of the compound formed is: MgCl2
Answer : The minimum amount of 6.9 M 
needed is, 2.0 L
Explanation :
The given chemical reaction is:
First we have to calculate the moles of 
Molar mass of = 2 g/mol
Now we have to calculate the moles of
From the balanced chemical reaction we conclude that,
As, 3 moles of produced from 3 moles of
So, 13.9 moles of produced from 13.9 moles of
Now we have to calculate the mass of
Thus, the minimum amount of 6.9 M needed is, 2.0 L
CuSO₄ or Copper Sulfate will be the limiting reagent when the zinc or aluminum was allowed to react with the copper sulfate. Copper Sulfate with the chemical symbol <span>CuSO₄ also known as cupric sulfate or copper sulphate, is used for fungicide. </span>
