Question

The atomic numbers of three elements X, Y and Z are 3, 11 and17 respectively. State which elements will show same chemical properties.(All India - 2013)

Answer 1

Explanation:

Among the elements Y , Z and X the two elements that will exhibit same kind of chemical properties are element X and element Y. Reason : Element X has the atomic number 3 and Y has 11 as it atomic number. We will find that these two elements lie in the same group.