Nickel is a metal element. There are 28 electrons in a single atom.
Ni2(CrO4)3 is an ionic compound. It is made up of cations (Ni2+) and anions (CrO4)3-, where the ions are held together by ionic bonds due to the transfer of electrons between the metals and nonmetals.
No, Ni2+ does not have a noble gas configuration. A noble gas configuration is attained when an atom has a full valence shell of electrons, like the noble gases in Group 18 of the periodic table. Ni2+ has lost electrons to achieve a stable electron configuration but does not have a full valence shell like a noble gas.
Ni2- would be the correct answer. This would be highly unusual and not really make sense. Nickel has 28 protons and any ions would usually have 26 or 25 electrons and thus would be Ni2+ or Ni3+
5
2
In the non-ionic form, carbon has 6 electrons.
The chlorine atom has 17 protons and electrons.
11 protons and 10 electrons
25 electrons.... ( as the number is 25 : being 25 protons and 25 electrons)
Beryllium has 4 electrons.
One
8 electrons which equals the atomic number