78 electrons
18 electrons
The Fe2 ion has 4 unpaired electrons.
The C4- ion has a total of 18 electrons. Carbon normally has 6 electrons, but the negative charge of -4 means that there are 4 extra electrons added to the ion.
The charge of an ion depends on the number of electrons gained or lost. Since the charge of an ion is not mentioned in this case, it is typically neutral as an atom, having an equal number of protons and electrons.
Beryllium (Be) has an atomic number of 4, which means it has 4 electrons in its neutral state. When beryllium forms a +2 ion (Be²⁺), it loses 2 electrons, resulting in 2 electrons remaining. Therefore, a beryllium ion (Be²⁺) has 2 electrons.
Phosphate is H3PO4 and phosphite is H3PO3. Phosphoric acid, when neutralized with a base, such as ammonium or potassium, forms a salt (Phosphate). Phosphorous acid also forms a salt when neutralized with a base (Phosphite). Thus, Phosphite has one less oxygen molecule than Phosphate.
no electron is present in the outer most shell of hydrogen ion
Also phosphorous is the ion (PO3)3-.
A chloride ion has 18 electrons, giving it a valence of -1.
There are 18 electrons in a chloride ion.
a cuprous ion has 28 electrons.
The ion Fr+ has 86 electrons.