It will lose 2 to form Sr2+
Chromium lose 6 or 3 electrons.
An ion forms when an atom gains or loses electrons to have a stable electron configuration. When an atom gains electrons, it forms a negatively charged ion (anion), and when it loses electrons, it forms a positively charged ion (cation).
Iodine typically gains an electron to form a -1 ion.
Iodine tends to gain one electron when it forms an ion.
Sulfur can both gain and lose electrons when forming ions. It can gain two electrons to form a sulfide ion (S2-) or lose two electrons to form a sulfide ion (S2+).
Nitrogen can gain three electrons to form an ion with a charge of -3. This would give nitrogen a stable octet of electrons in its outer shell, following the octet rule.
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.
A non metal needs to GAIN electrons to form an ion
Aluminum will lose 3 electrons to form Al3+ ion.
A sulfur atom will gain two electrons to form a 2- sulfide ion.
It will lose 2 to form Sr2+
Chromium lose 6 or 3 electrons.
As it is in group six and therefore nearer to the Noble Gases it gains.
Charged particles that form when atoms gain or lose electrons are called ions. When an atom gains electrons, it becomes a negatively charged ion (anion). When an atom loses electrons, it becomes a positively charged ion (cation).
None.Calcium loses 2 electrons to form an ion.
A nonmetal will gain one or more electrons in order to form a negatively charged ion.