Respuesta :
2+ charge = atom has lost 2 electrons
27+2=29
original atom has 29 electrons
Atomic # = 29
Copper (Cu2+)
27+2=29
original atom has 29 electrons
Atomic # = 29
Copper (Cu2+)
The element with 25 electrons has been Mn. And the ion with 27 electrons and +2 charge has been Cu ion ([tex]\rm \bold{Cu^+^2}[/tex]).
The atom has been the smallest unit of matter. It has been consisted of electrons, protons, and neutrons as subatomic particles.
The atom has a positively charged nucleus and negatively charged electron bodies revolving around the nucleus. The nucleus has been consisted of neutrons and protons. The number of electrons and protons in the nucleus have been equal.
The electrons are filled in the shells based on the energy level. Each shell occupies a set amount of electrons. In order to attain a stable configuration, the atoms gains or lose electrons. When an atom gains electrons, it encompasses a negative charge, and when an atom loses electrons it occupies a positive charge.
The certain ion has 27 electrons. The element with 27 electrons has been Cobalt. The ion has a +2 charge, that is it loses 2 electrons.
The total electrons will be:
= 27 -2
= 25 electrons.
The element with 25 electrons has been Mn. And the ion with 27 electrons and +2 charge has been Cu ion ([tex]\rm \bold{Cu^+^2}[/tex]).
For more information about ions and charge, refer to the link:
https://brainly.com/question/11115640
