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Magnesium donates two electrons, one to each florine, leaving it with a charge of 2+. Fluoride. Each fluorine atom receives an electron from ...
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Magnesium donates two electrons, one to each florine, leaving it with a charge of 2+.
Each fluorine atom receives an electron from magnesium thereby forming the fluoride anion.
Mg2+^ and F- Mg^2 +^ +2 = + 2 1 Mg2+ F-^ - 1 - 1 = - 2 2 F- There are 2 F-^ for each 1 Mg2+. MgF 2 Chemical equation, Mg^2 +^ + 2F-^ → MgF 2
Chromium (III) nitride Cr3+^ and N^3 - Cr3+^ +3 = +3 1 Cr3+ N^3 -^ - 3 = - 3 1 N^3 - There is 1 Cr3+^ for each 1 N^3 -. Cr 3 N 3 CrN “Chromium three nitride” Chemical equation, Cr3+^ + N^3 -^ → CrN
Cr N
Cross-Over rule CrN
Table check the list of polyatomic ions.
Determine the ratio of ions needed to balance the positive and negative charges. The positive and negative charges must balance.
Write the name of the compound with the cation first. Place brackets around polyatomic ions if more than one is needed. Ammonium phosphate NH 4 +^ and PO 43 - PO 43 -^ 1(-3) = - 3 NH 4 +^ x(1) = + x = 3 There are 3 NH 4 +^ for each 1 PO 43 -. (NH 4 ) 3 PO 4