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This is half true. An ion is formed when an atom loses OR gains an electron. When it loses an electron it's called cation because it has a positive charge, and if it gains an electron it's called anion because it has a negative charge.

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An ion id formed when an atom?

gains or loses an electron.


Ask us anythingAn ion is formed when an atom .?

An ion is formed when an atom gains or loses an electrons or electrons. If it gains an electron, it becomes an anion, and if it loses an electron it becomes a cation.


What is formed when an atom gains or loses an electron?

An atom forms an ion when it gains or loses an electron. If an atom gains an electron, it becomes a negatively charged ion (anion). If an atom loses an electron, it becomes a positively charged ion (cation).


Where is Ions form?

An ion is formed when an atom gains or loses an electron


What is the symbol and name for the cation formed when a potassium atom loses one electron?

The symbol for the cation formed when a potassium atom loses one electron is K+, and is named the potassium ion.


What ion is formed when an atom loses an electron.?

A positive ion is formed when atoms lose electrons. When a cell gains an electron it becomes negative


If a neutral atom loses or gains an electron what is formed?

An Ion. More specifically if it gains an electron it becomes an anion and it it loses an electron it becones an cation (pronounced Kat-ion)


When an atom loses an electron it loses a?

Removal of an electron from an atom leaves a positively charged ion.


What is the charge of the ion formed when a potassium atom loses one electron?

K+ ions


What type of ion is formed when an atom loses an ion?

A positive ion is formed when atoms lose electrons. When a cell gains an electron it becomes negative


When a helium atom loses an electron then what is formed?

When a helium atom loses an electron, it forms a helium ion which is positively charged because it has one less electron than protons. This helium ion is written as He+.


What is the charge on an ion formed by a sodium atom?

The charge on an ion formed by a sodium atom is +1. Sodium readily loses one electron to achieve a stable electron configuration, resulting in a positively charged ion.