The oxidation states of selenium are: 1 to 6 and -1, -2.
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
Selenium can gain 1 electron or loss 2, 4, 6 electrons.
Selenium needs to gain two electrons to achieve a stable electron configuration. By gaining two electrons, selenium will have a complete outer energy level (valence shell), which is the most stable configuration for an atom.
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
Selenium typically gains two electrons to achieve a stable electron configuration, forming the Se2- ion. Arsenic typically loses three electrons to achieve a Noble Gas electron configuration and forms the As3+ ion.
It should gain 2 electrons
Se will gain electrons
Selenium gains two electrons to achieve a stable electron configuration, usually by forming ionic compounds in which it takes on a -2 charge.
Selenium typically loses 2 electrons to achieve a stable electron configuration. This results in the formation of a 2+ ion for selenium.
Selenium has 34 electrons.
Silicon (Si) can gain or lose 4 electrons. It can either gain 4 electrons to have a stable octet configuration or lose 4 electrons to achieve a stable configuration.
it will lose 3 electrons