The "2s" and "+" are meant to be written very small but there was no way i could write it.
So how can it be worked out to get a "no overall charge"?
2006-08-27 07:22:42 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Overall, the ionic compound is neutral even though the ions themselves have charged.
The +2 charge on the Mg ion cancels out the two -1 charges on the Chloride ions.
1 * (+2) + 2 * (-1) = 0
At a distance, the compounds looks completely neutral.
2006-08-27 07:48:35 · answer #1 · answered by mrjeffy321 7 · 0⤊ 0⤋
Mg2+ + 2Cl- = MgCl
Mg is from the second group of the periodic table, and Cl is from the seventh. In order for the reaction to occure 2 Cl atoms are needed to bond with 1 Mg. Mg has 2 electrons on the third shell which is weakly bonded to the neucleus. Cl has 7 electrons on its third shell, which are quite strongly held to the neucleus due to so many of them, therefore requires one more electrons to form a stable octect ( 8 electrons=octect). Mg will give away 2 of its electrons to the 2 Cl, helping it to form a stable octect, while Mg will also establish a stable octect with its 10 electrons ( 2 in the first shell and 8 on the second shell). There are no charges due to no additional electrons required or no excess electrons in the compound.
Hope this helps.
2006-08-27 15:38:34 · answer #2 · answered by Axel 2 · 0⤊ 0⤋
Mg+2 needs two electrons to complete its orbit, so when forming a ionic pair with 2 ions of Cl-, which has exceeding electrons, this will neutralize the charge of the solution
2006-08-27 14:27:44 · answer #3 · answered by Soledad 2 · 0⤊ 0⤋
MgCl2 has one Mg atom and two Cl atoms. Mg ion has 2 positive charges and two cl ions 2 negataive charges which cancel and makes the compound neutral..
2006-08-27 14:30:48 · answer #4 · answered by rabi k 2 · 0⤊ 0⤋
there are two Cl, think of it as a variable, like X, if you are good at math, and it equals -1 and the other equals 2. So the Mg is a 2 and the Cl is a -1 and the equasion is Mg+2Cl
Mg+2Cl=2+2(-1) substitution property
2+2(-1)=2-2 multiply 2 by -1
2-2=0 subtraction
2006-08-27 14:34:17 · answer #5 · answered by albinopolarbear 4 · 0⤊ 0⤋
the 2+ and the two - charges cancel each other out.
2006-08-27 14:26:04 · answer #6 · answered by mollyneville 5 · 0⤊ 0⤋
because of the ionic bonds created there is no net charge because everything is evened out.
2006-08-28 13:08:40 · answer #7 · answered by shiara_blade 6 · 0⤊ 0⤋