As we approach the upper left hand corner of the periodic table, which of the following is true?

Question

Quizplus · Accepted Answer

The upper left hand corner of the periodic table contains the elements with the smallest atomic radius. As we approach that corner, the atomic radius becomes smaller and smaller due to fewer electrons present in the electron shell. For example, lithium (period 2) has 2 shells of electrons, and is much smaller than cesium (period 6) which has 6 shells of electrons.

As We Approach the Upper Left Hand Corner of the Periodic