selenium has a -2 charge. when it forms a compound with another atom the charge of the compound should be zero unless it has a cahrge in its equation. when compounds form they try to be in the most stable state which is when all their valance elctrons are full which means the charge is zero.
Selenium is two electrons short of having a full valance shell, so a stable ion of selenium will have a 2- charge.
Selenium forms selenide ion with -2 charge.
Se, selenium is a member of oxygen family so its stable ion is Se-2.
6, 4, 2, 1, 0, -2
-2
2-
The resulting compound would be electrically neutral.
Ca (calcium) is an element, not a compound. and it can only form ionic compounds.
A cation is a positive ion and an anion is a negative ion. So the compound you are describing as an ionic one. For example, Cation + Anion --> Ionic Compound Fe3++ O2- --> Fe2O3
Magnesium and iodine react to form the ionic compound magnesium iodide - MgI2.
Strontium is an earth metal (element #38), and iodine is a halide non-metal (element #53), therefore they would form an ionic bond. Strontium ions have a +2 charge, and iodines -1, so to form a neutral-charged compound, we need 2 iodines for every Strontium, and the chemical formula would be: SrI2.
Potassium will form ionic compound with group 17 elements (fluorine, chlorine, bromine, iodine) and group 16 elements (oxygen, sulphur, selenium).
MgF2 Magnesium, an alkaline earth metal of 2+ ionic charge and two fluorine, a nonmetal, atoms of 1- charge each form a ionic bond
In aqueous form, the ionic compounds dissolve into there separate ions, and the charge can be transferred between the ions
Calcium would form Ca2+ and chlorine would form Cl-. The ionic compound would be CaCl2 to ensure a neutral charge for the whole compound.
Selenium form anions.
The resulting compound would be electrically neutral.
yes it will form an ionic compound.
When aluminum forms an ionic compound, it tends to take the form of a cation with a +3 charge. This would happen because it would donate three of its electrons to the anion(s) it forms the ionic compound with.
Sodium hydroxide, or lye, does not have a charge. It is an ionic compound composed of sodium 1+ and hydroxide 1- ions. When they combine to form the ionic compound sodium hydroxide, the 1+ and 1- charges cancel each other and the compound is neutral.
Combination of a metal with a non metal will form an ionic compound.
Sodium chloride is formed by an ionic bond.
Two bromide ions can combine with one barium cation to form an ionic compound, because a barium cation has an electrical charge of +2, while a bromide anion has an electrical charge of -1.