Respuesta :
X and Z- because they have the same amount of valance electrons they will be in the same column of the periodic table and elements of the columns have similar properties.
Explanation:
It is known that elements which contain same number of valence electrons when present in their neutral state then they tend to show similar chemical properties.
This is because only the valence electrons actively participate in a chemical reaction. As a result, these valence electrons determine their reactivity.
This is why, elements of same group tend to show similar chemical properties.
For example, element X and element Z have same number of valence electrons.
Therefore, we can conclude that both elements X and Z are most likely to have similar properties.
