Beryllium and aluminium have similar properties because they
Answer Details
Beryllium and aluminium have some similar properties because they both belong to the same group of elements in the periodic table, known as Group 3A. Elements in the same group tend to have similar chemical and physical properties because they have the same number of electrons in their outermost shell, also known as valence electrons. This means they have similar reactivity and can form similar chemical bonds with other elements.
However, beryllium and aluminium are not positioned diagonally to each other in the periodic table, and they also do not belong to the same period. Beryllium is in period 2, while aluminium is in period 3. They are both metals, but this is not the main reason for their similar properties.