Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
It should gain 2 electrons
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
6 valence electrons
gain 2 electrons
Selenium will gain two electrons and arsenic will gain three electrons
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
Selenium can gain 1 electron or loss 2, 4, 6 electrons.
gain 3
The oxidation states of selenium are: 1 to 6 and -1, -2.
It should gain 2 electrons
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
gain 2 electrons
6 valence electrons
The symbol is Se(2-).
gain 2 electrons
Selenium has 34 total electrons. It has 6 valence electrons.