Question

14 multiple choice 1 point select the atom with the highest ionization energy. ni zn se ge

Explanation:

Ionization energy generally increases across a period from left - to - right in the periodic table. Ni (Nickel), Zn (Zinc), Se (Selenium), and Ge (Germanium) are in the same period (Period 4). Among them, Se is the furthest to the right. As we move right across a period, the effective nuclear charge increases, making it harder to remove an electron and thus increasing ionization energy.

Answer:

C. Se