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, when forming an ion, gains two electrons. The name of the anion is Selenide, and it has a -2 charge. I found this by looking at the periodic table. Find Selenium, number 34, and you can see that two spaces to its right is a noble gas. This means is gains two electrons when forming an ion. I hope I helped.
Ionic bond is formed in K2Se
an Ionic compound
The oxydation states of selenium are: -2, +2, +6, +4.
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.
it is Ionic because radium is a metal and selenium is a nonmetal or radium is on the left of the stair case and selenium is to the right
Barium Selenium
Selenium form anions.
Selenium, when forming an ion, gains two electrons. The name of the anion is Selenide, and it has a -2 charge. I found this by looking at the periodic table. Find Selenium, number 34, and you can see that two spaces to its right is a noble gas. This means is gains two electrons when forming an ion. I hope I helped.
Ionic bond is formed in K2Se
This bond is ionic.
an Ionic compound
The oxydation states of selenium are: -2, +2, +6, +4.
barium
The ionic charge of Californium is 3+.
Phosphite has an ionic charge of -3.