Chapter 8, Problem 8B.3DQ

Interpretation Introduction

Interpretation:

The variation of the first ionization energies along period $2$ has to be described.  Whether the variation of the first ionization energies along period $3$ is same with the variation of the first ionization energies along period $2$ has to be described.

Concept introduction:

Ionization energy is the minimum amount of energy needed to remove an outermost electron from an atom in its isolated gaseous state.  To remove the first electron from an atom, the minimum energy needed is known as the first ionization energy $\left(I_1\right)$ and to remove the second electron from an atom, the minimum energy needed is known as the second ionization energy $\left(I_2\right)$.