Question

The atomic numbers of three elements X. Y and Z are 3 11 and 17. respectively State giving
reason which two elements will show similar chemical properties?

Answer 1

Answer:

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.

Answer 2

Answer:

• The two elements X and Y will show same chemical properties because they have same number of valence electrons in group.

• They form positively charged ions by losing one electron.