Element X has five valence electrons, element Y has one valence electron, and element Z has five valence electrons. Which two of these elements are most likely to have similar properties? Explain your answer

Question

anonymous · Answer

X and Z,
due to the same number of valence electrons.
having the same no. of valence electrons show that they belong to the same group.
here, most probably, they belong to the Transition Metal group.
Those which shares the same group/period have similar properties