After an atom has lost an electron it becomes a/an and has a charge. cation, positive anion, negative isotope, negative anion, positive

Answer : After an atom has lost an electron it becomes a cation and has a positive charge.

Explanation :

Ion : When an atom loses or gain an electron then it becomes an ion. Ions are of two types that are cation and anion.

When an atom gains an electron then it becomes an anion that has negative ion or charge.

When an atom loses an electron then it becomes a cation that has positive ion or charge.

For example : The sodium metal (Na) has 1 valence electrons so, it can easily lose one electron and it becomes cation that has positive charge, .

The chlorine (Cl) has 7 valence electrons so, it can easily gain one electron and it becomes anion that has negative charge, .

As per question, when an atom lost an electron then it becomes a cation an has a positive charge.

Hence, after an atom has lost an electron it becomes a cation and has a positive charge.

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