51
Cr and Fe have four unpaired electrons in their 2 plus ions.
two elements with ions with a 2 plus charge are Sulfurand Oxygen
Yes, Mn2+ is a cation. It has a charge of +2 because it has lost two electrons. Cations are positively charged ions formed by losing electrons.
69-
Group 2A elements typically lose 2 electrons when forming ions.
It has 4 d electrons.
Pb2+ has lost two electrons, so it has 82 - 2 = 80 electrons.
lose 2 electrons and form ions with a 2+ charge.
MgO exists as Mg2+ and O2- ions due to the difference in electronegativity between magnesium and oxygen. Magnesium readily loses two electrons to achieve a stable electron configuration, forming Mg2+ ions. Oxygen readily gains two electrons to achieve a stable electron configuration, forming O2- ions. This transfer of electrons results in an ionic bond between the magnesium and oxygen ions, rather than a covalent bond where electrons are shared.
A beryllium atom (Be) has 4 electrons. When it forms a cation with a charge of +2 (Be²⁺), it loses two electrons. Therefore, a Be²⁺ cation has 2 electrons remaining.
actually there are 6 electrons in carbon and oxygen has 8 electrons and it gains 2 electrons to make it a negative ion so the total number of ions are 32
40 Ca2+ Mass number is 40 Atomic number (proton number) is 20 therefore 18 electrons as calcium has lost 2 electrons to become a Ca2+ ions :D