Question 7
Periodic TableBeryllium and aluminium have similar properties because they
- A.are both metals.
- B.belong to the same group.
- C.belong to the same period.
- D.are positioned diagonally to each other.
Show the answer and explanation
Answer: D (are positioned diagonally to each other.)
Explanation
Beryllium (group II, period 2) and aluminium (group III, period 3) sit diagonally across the periodic table, and diagonal neighbours have similar charge density and so similar properties.