Two elements A and B belong to 3 period of modern periodic table and are in group 2 and group 13
respectively. Compare the following characteristics of A and B in tabular form:
(1) Number of electrons in their atom
(2) Non-metallic character Elect
(3) Atomic size
(4) Tendency to lose electron
(5) Number of valence shell electrons
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1 Number of electrons in their atom
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