I know that there is way to know or figure out the charges (2+, 3-, +) of the elements but what is it?
2006-11-14 04:44:53 · 3 answers · asked by daddysgurrl0505 1 in Science & Mathematics ➔ Chemistry
No concrete way to work it out. Groups one and two take positive charges equal to their group number (Mg2+, Li1+ etc). Groups 3, 4, 5, 6 and 7 ionise to a negative charge of 8 minus their group number (Cl1-, O2- etc), though 3, 4, and 5 tend to resist ionisation and are much more commonly found bonded covalently. The Transition elements ion charges are virtually impossible to predict without an extensive knowledge of d orbitals etc..
2006-11-14 05:04:00 · answer #1 · answered by Puck 1 · 0⤊ 0⤋
Mg has a +2 value because that is an alkaline earth metallic. yet Fe is a transition metallic. Transition metals could have more effective than one value. to examine which one to apply, you've gotten to have a compound. as an example in the journey that your compound is FeO, you recognize to apply the Fe with a +2 value because O has a -2 value and once you "criss-go" the prices, it would want to come out searching like this: FeO = Fe2O2 because that is an similar ratio (2:2 = a million:a million)! Then once you criss go, O might want to have a -2 value, and Fe might want to have a +2 value!
2016-11-29 03:27:30 · answer #2 · answered by cheathem 4 · 0⤊ 0⤋
Use the Periodic table
2006-11-14 04:51:56 · answer #3 · answered by SteveA8 6 · 0⤊ 1⤋