3. Thats what the DAT says. But I think its 2. 3p2
In a Co2+ ion, cobalt has two fewer electrons than its neutral state, so it loses two electrons. Cobalt in its neutral state has 7 unpaired electrons. Upon losing two electrons, the Co2+ ion has 5 unpaired electrons.
When selenium gains two electrons, it becomes the selenide ion.
The chromium (Cr) ion is expected to have 3 unpaired electrons. This is because the electron configuration of chromium is [Ar] 3d^5 4s^1, so when it forms an ion by losing its 4s electron, it retains the 5 unpaired electrons in the 3d subshell.
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.
The Fe2 ion has 4 unpaired electrons.
Selenium typically has 34 electrons in its neutral state. To determine the number of electrons in a selenium ion, you need to know the specific charge of the ion. For example, a selenium ion with a charge of +2 would have 32 electrons, while a selenium ion with a charge of -2 would have 36 electrons.
An oxide ion (O^2-) has 0 unpaired electrons. It has a full outer electron shell with 8 electrons, fulfilling the octet rule.
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5 unpaired electrons There are 5 unpaired electrons in the Fe3+ ion. The reason for this is that Iron has the electron configuration Ar3d5.
In a Co2+ ion, cobalt has two fewer electrons than its neutral state, so it loses two electrons. Cobalt in its neutral state has 7 unpaired electrons. Upon losing two electrons, the Co2+ ion has 5 unpaired electrons.
Magnesium has five unpaired electrons and is therefor paramagnetic
There are 5 unpaired electrons in Fe^3+ in its ground state.
All of the electrons are paired. If you are asking how many lone pairs, there are 4.
Selenium can gain 1 electron or loss 2, 4, 6 electrons.
The number of unpaired electrons in Tl-81 ion is zero, this in case of ejection of one electron from Tl-81 atom. Thx!!
There are 4 unpaired electrons in the ground state electron configuration of an Fe atom. These 4 unpaired electrons are in the 3d subshell.