Identify the element of Period 2 which has the following successive ionization energies,in kJ/mol. IE₁, 1314 IE₂, 3389 IE₃, 5298 IE₄, 7471
IE₅, 10992 IE₆, 13329 IE₇, 71345 IE₈, 84087

Question

Quizplus · Accepted Answer

The element with these ionization energies has its first eight ionization energies listed. The first ionization energy is relatively low, suggesting a metal, but the subsequent ionization energies are very high, indicating that it becomes much more difficult to remove electrons as you go up in energy levels. This is a characteristic of nonmetals. Oxygen (O) is the only nonmetal in Period 2, so it must be the element in question. The other choices (Li, B, Ne) are metals or noble gases and do not fit the ionization energy pattern.

Identify the Element of Period 2 Which Has the Following