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Typically, a negative ion is formed by gaining electrons. This is because electrons hvae a negative charge. An example of a case where a positive ion can be formed by gaining an electron is when an ion with a charge of +2 can gain 1 electron and become +1. Technically in this case, a positive ion was formed when an electron was gained but the trend was that the ion became more negative not positive.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoWhen you say a positive ion, I assume you mean, for example, Fe2+ which means that the atom has lost 2 electrons. The basic rule is: Metals like to lose electrons (and therefore become positive ions, or cations as they are called) and non-metals like to gain electrons (therefore becoming negative ions, or anions).
The way I remember this is:
Onions are bad ----> Anions are negative e.g. Cl-
Cats are good ----> Cations are positive e.g. Ag+
Wiki User
∙ 12y agoA atom that has gained a electron is a negative ion because electrons are negative and protons are positive. Before the atom was balanced and equal but now there is more negative power if you get what i mean. Hope I helped =D
Wiki User
∙ 9y agoWhen an atom gains electrons, the ion becomes a negatively charged ion.
Wiki User
∙ 13y agolost electrons. i remember it by :
-im about to lose an electron
-are you sure?
-im positive!
Wiki User
∙ 13y agoAn anion, or negative ion is formed when an element gains electrons.
Wiki User
∙ 8y agoIf an element gains an electron or electrons it will become a negative ion (anion). This makes sense because electrons carry a negative charge.
Wiki User
∙ 13y agoan ion gains or loses electrons
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What atoms can form an ion?
an atom which readily losses or gains electrons to attain stability forms an ion.
When an atom gains an electron what charge does it have?
An atom that gains three electrons will become an ion with a 3- charge.
When the number of electrons in an atom changes what is the new atom called?
When an atom loses or gains electrons, it becomes an ion.
A strontium atom differs from a stontiun ion in that the atom has a greater what?
electrons. Ions exist when an atom gains or loses electrons
When is An ion is formed when an atom?
An ions is formed when an atom gains or loses electrons.
What does an atom become if it gains or loses electrons?
An atom becomes an ion if it gains or loses electrons.
What atoms can form an ion?
an atom which readily losses or gains electrons to attain stability forms an ion.
What happen when an atom forms an ion?
For an atom to form an ion, it has to either gain or lose one or more electrons. Usually this happens during a chemical reaction, when an element gains or loses electrons to achieve noble gas configuration.
An atom that has lost or gained electrons is an?
an ion
What do you call an atom that gains or loses electrons?
An atom that gains or loses electrons is called an ion. If it gains electrons, it results in a negative ion called an anion. If it loses electrons, it results in a positive ion called a cation.
Are ion stable?
because they form in compund where one atom loses electrons and other gains.
What does an atom become when it loses or gains electrons?
it becomes an ion
When an atom gains electrons what does it become?
It becomes an ion.
An atom that loses or gains electrons becomes a?
ion
When a atom loses or gains electrons it becomes an?
Ion
What is created when an atom gains electrons?
a negative ion
Do elements gain electrons to form a negative ion?
Yes, electrons have negative charge so if an atom gains one, the Ion formed is negatively charged.
