An element X oif atomic number 12 combines with an element Y of atomic number 17 to form a compound `XY_(2)`. State the nature of chemical bond in `XY_(2)` and show how the electron configurations of X and Y change in the formation of this compound.

Element 'Y' with atomic number 3 combines with element 'A' with atomic number 17. What would be the formula of the compound ?

An element 'X' has an atomic number 11 while an element 'Y' has an atomic number 17. They are expected to form

An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide. Draw the electron dot structure of the divalent halide.

An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide. Where in the periodic table are elements X and Y placed?

An element X (atomic number 17) combines with an element. Y (atomic number 20) to form a compound. (i) Write the positions of these elements in the modern periodic table. (ii) Write the formula of the compound formed. Justify your answer in each case.