Q1 of 58 Page 1

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

the electronic configuration are as follows:

X 2, 1


Y: 2, 8, 1


Z: 2, 8, 7


Since X and Y have same no. of valence electrons, so X and Y will have same chemical properties.


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