An atom can become an ion by losing electrons. It can accomplish the same thing by gaining electrons.
An atom becomes a positively charged ion when it loses one or more electrons.
An atom can become an ion by either gaining or losing electrons. If it gains electrons, it becomes an anion. If it loses electrons, it becomes a cation. An ion is merely an atom with a charge, either positive or negative.
A neutral oxygen atom has 8 electrons. When oxygen becomes an ion, it can gain 2 electrons to become O2-, losing the neutral 8 electrons to become a total of 10 electrons in the ion.
electrons
This is by gaining (-) or losing (+) electrons
An atom becomes a positive ion by losing electrons, resulting in more protons than electrons. This creates a net positive charge. An atom becomes a negative ion by gaining electrons, leading to more electrons than protons. This creates a net negative charge.
Losing electrons makes an atom positively charged (cation) by having more protons than electrons, while gaining electrons makes an atom negatively charged (anion) by having more electrons than protons.
It would become an Aluminum ion that has a 3+ charge
A sulfur atom becomes a sulfur ion by losing or gaining electrons. If a sulfur atom loses electrons, it becomes a positively charged sulfur ion (sulfur cation). If it gains electrons, it becomes a negatively charged sulfur ion (sulfur anion).
An ion is a single atom that carries a positive or negative charge due to gaining or losing valence electrons. The atom becomes an ion when it has an unequal number of protons and electrons.
By losing one or more electrons
Arsenic becomes an ion by gaining or losing electrons. It can either gain three electrons to form the As3- ion (arsenide ion) or lose three electrons to form the As3+ ion (arsenite ion), depending on the reaction conditions.