Two elements A and B Belong to group 1 and 2 respectively in the same periodic table . Compare them with respect to (1)mettalic character (2) size of their atoms (3) formula of thier oxides (4) formula of their chlorides
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As we move left to right metallic character decreases as atomic size decreases due to the increase in nuclear charge.
Atomic size increases from A to B
A : X2O
B: XO
A: XCl
B: XCl2
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