Final answer:
The ion with 22 protons, 26 neutrons, and 19 electrons is represented by the symbol 48Ti3+, indicating the element titanium (Ti), its mass number (48), and a +3 charge.
Step-by-step explanation:
To represent an ion with 22 protons, 26 neutrons, and 19 electrons, we need to identify the element and then provide the chemical symbol including the mass number and charge. First, the number of protons determines the element. An element with 22 protons is titanium (Ti). The mass number is the sum of protons and neutrons, so for this ion, it is 22 (protons) + 26 (neutrons) = 48. As for the charge, since the ion has fewer electrons than protons, it will have a positive charge. The difference between the number of protons and electrons is 22 - 19 = 3, so the charge is +3.
The complete symbol for this ion is 48Ti3+, where 48 is the mass number and 3+ indicates the positive charge due to the loss of three electrons.