In a surprisingly large number of their properties, beryllium resembles aluminum and boron resembles silicon. Such a relationship is called
A) amphoterism.
B) an allotropic relationship.
C) a diagonal relationship.
D) the periodic law.
E) an isoelectronic series.

Question

Quizplus · Accepted Answer

The relationship between beryllium and aluminum, as well as boron and silicon, is known as a diagonal relationship. This is because they are located diagonally from each other on the periodic table and share similar properties.

In a Surprisingly Large Number of Their Properties, Beryllium Resembles