Answer :
Answer: X3+
Explanation:
Every atom aim to achieve stability by receiving electrons or giving their valence electrons in order to have a complete outermost shell of 2 (duplet) or 8 (octet structure).
In this case, the atom X will easily give off its three valence electrons to another atom(s), thereby forming a trivalent positive ion (X3+) with a stable duplet or octet structure (i.e an outermost shell with 2 or 8 electrons).
X --> X3+ + 3e-
Thus, due to the give away of three electrons (3e-), the atom X becomes X3+.
An atom with three electrons in its outermost shell will most likely form an [tex]X^{3+}[/tex] ion. D would be the right option.
If an atom X has 3 electrons in its outermost shell, two scenarios are possible for such an atom to form an ion and be in a stable or octet state.
- It may gain 5 electrons in addition to the 3 valence electrons and form an [tex]X^{5-}[/tex] ion
- It may do away with the 3 valence electrons and form an [tex]X^{3+}[/tex] ion.
By gaining 5 electrons, an ion with 5 negative charges would result to indicate the electrons gained. On the other hand, by giving away 3 electrons, an ion with 3 positive charges would be formed to indicate that 3 electrons have been donated.
More on ion formation can be found here: https://brainly.com/question/305470