3. Thats what the DAT says. But I think its 2. 3p2
I'm pretty sure just one.
1
5
4 unpaired in high spin 2 unpaired in low spin
When selenium gains two electrons, it becomes the selenide ion.
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
Since Selenium is a Chalcogen (meaning it's in group 6A on the Periodic Table), it gains 2 electrons to form an ion with a charge of -2.
they're are zero unpaired electrons.
28
5 unpaired electrons There are 5 unpaired electrons in the Fe3+ ion. The reason for this is that Iron has the electron configuration Ar3d5.
Magnesium has five unpaired electrons and is therefor paramagnetic
Selenium has 34 total electrons. It has 6 valence electrons.
5
The number of unpaired electrons in Tl-81 ion is zero, this in case of ejection of one electron from Tl-81 atom. Thx!!
4 unpaired in high spin 2 unpaired in low spin
The paramagnetic value is the number of unpaired electrons in the metal ion.
Selenium will gain two electrons and arsenic will gain three electrons
When selenium gains two electrons, it becomes the selenide ion.
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.