would you expect the following atom to gain or lose electrons when forming ions?

what ion is the most likey?

The atom is In how would i do this?

In has three electrons in its outer shell (notice it is in group 13 and the 3 tells you that) so it will tend to lose those three electrons to form an ion, In+3.

Generally, but not always, atoms with three or fewer electrons in the outer shell tend to lose them. Atoms with 5 or more electrons in their outer shell tend to gain electrons (to make 8). Atoms with 4 tend to form covalent bonds.

To determine whether the atom In (Indium) will gain or lose electrons when forming ions, you need to look at its position on the periodic table. Indium is located in Group 13 of the periodic table, which means it has 3 valence electrons.

Atoms tend to gain or lose electrons in order to achieve a stable electron configuration, typically by either gaining electrons to fill their outermost energy level or losing electrons to empty it completely. In the case of Indium, it is more likely to lose its 3 valence electrons to achieve a stable electron configuration like the nearest noble gas, which is argon (2, 8, 18, 18, 3).

By losing its valence electrons, Indium will form a +3 cation (positive ion) since it will have more protons than electrons. Thus, the most likely ion that Indium forms is In3+.