Element M is likely a metal that forms cations with a charge of +3. This is based on the ionization energy values for element M, which are low for the first ionization energy and high for subsequent ionization energies.
The ionization energy values for element M in the image suggest that it is a metal. Metals tend to have low first ionization energies and high subsequent ionization energies. This is because metals tend to lose their outermost electrons easily in order to form cations. The third and higher ionization energies for element M are very high, suggesting that it is difficult to remove more than three electrons from this element.
Based on the information in the image, we can conclude that the ion formed by element M in its compounds will have a charge of +3. This is because element M is likely to lose its three outermost electrons in order to form a stable cation.