This is a chemical element. You can find the how many electron in a single atom by using a Periodic Table.
6
Chromium lose 6 or 3 electrons.
Selenium may lose 2, 4 or 6 electrons and may gain 2 electrons.
Three. In fact, any element in the same column of the periodic table as nitrogen will also gain three electrons when forming an ion.
Iodine tends to gain one electron when it forms an ion.
The charge on a carbonate ion is -2; therefore, the ion has two more electrons than protons.
4
2-
None.Calcium loses 2 electrons to form an ion.
6
Selenium will gain two electrons and arsenic will gain three electrons
In phosphene it gain 4 electrons. Phosphate lose 4 electrons
3
1
The Gain Is The Hydrogen Molecualer Acid Which Relseases On The Molecule causing A Reacting Of The Number Of Gains The Eectrons Hydrogenat.
it will lose 3 electrons
Chromium lose 6 or 3 electrons.