The loss or gain of electrons transform an atom in an ion.
If the atom was not a negative ion prior to losing an electron, it becomes a positive ion.
The neutral atom become an ion (cation) with the charge +1.
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chlorine atom will first convert to the gaseous chlorine atom which will then add one electron to form chloride ion.
A chlorine atom becomes a chloride ion when it gains an electron from a metal atom, such as sodium.
the barium atom loses two electrons
+2 or -2? Either way, nothing special happens.
The valence electrons are either lost to another atom or the sodium atom gains valence electrons, it really depends on if what the sodium atom is bonding with has a lot or a little of valence electrons. The structure doesn't change though, just the number of valence electrons change. The nucleus is never changed when an ion is formed.
An atom becomes negatively charged when it gains an electron. However, nothing happens to the subatomic particles.
Helium; it has a duplet structure.
If an atom loosed electrons then it becomes an ion. The electrical charge in the atom becomes a positive ion.
If the atom was not a negative ion prior to losing an electron, it becomes a positive ion.
When an atom becomes an ion, it is because the atom now no longer has a neutral charge. Nothing really happens besides this, unless it reacts to a different element.
When an atom is an ion, it means that it either lost or gained one or more electrons.
It will be a negative ion, or in other words, a anion.
The atom had either lost or gained one or more electrons forming and ion. Thus the ion has an overall electric charge.
The atom becomes a negative ion.