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when an element gains and electrons it becomes negativly charged. Well and example of a negative ion would be fluorine and chlorine they are represented as

F- Cl- the superscript negative symbol means that the number of electrons

and protons are not equal because the element has gained electrons to gain

a full valence shell (outer shelll) if they gain more then 1 electron you simply

put the number beside the negative symbol like 2 3

For the loss of electrons that means the symbol becomes positive

and it would be the the alkali metals like litium and magnesium

Li+ Mg+

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12y ago
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13y ago

When an atom loses electrons from its outermost valence shell then it becomes a positive ion.

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12y ago

Atoms become negatively charged when it gains an electron

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Q: When does an atom become a negatively charged ion?
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Related questions

What happens when a atom gains an electron?

When an atom gains an electron it becomes an ion with a charge of negative one. This charge comes from the electron's negativity, which changes the atom's balanced ratio of electrons to protons.


When an atom loses an electron and become negatively charged we refer to it as an?

When an atom loses an electron and becomes negatively charged we refer to it as a positive ion


When an electron is gained the atom become an?

It becomes a negatively charged ion.


What is a charged atom?

A charged atom is an ion. A positively charged version is a cation and a negatively charged one, an anion.


What a ion?

An ion is a positively or negatively charged atom or molecule.


When an atom gains an electron to be stable it becomes?

Electrically Charged or Negatively charged


What is the name given to an atom that has become charged?

It depends, a proton if is is positively charged ( +) electron if it is negatively charged ( - )


If an atom gains electrons it become a?

If the atom was neutral, it becomes an anion. Since electrons have a (-) charge


What forms when atoms lose or gain electrons and become positively or negatively charged they are know as?

The atom becomes an ion. Also, A positively charged atom is called a Proton A Negatively charged atom is called a Electron


What happens when chlorine atom gains an electron in its outer energy?

No! Electrons are negatively charged. A neutral atom gaining a electron will, by necessity, become negatively charged. Cl(-)


Is sodium atom or chloride ion negatively charged?

Sodium Atom


To become a negative ion does an atom lose or gain electron?

The atom needs to gain an electron so it has more than the protons Hope I helped