Two elements X and Y belong to group 1 and 2 respectively in the same period of the periodic table. Compare these elements with respect to :
Two elements X and Y belong to group 1 and 2 respectively in the same period of the periodic table. Compare these elements with respect to :
(i) number of electrons in their outermost orbit
(ii) their valencies
(iii) metallic character
(iv) their atomic size
(v) formula of their chlorides
(vii) formula of their sulphates.
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(i) Number of electrons in the outermost orbit of
X=1 and Y=2.
(ii) Valency of X=1 and Y=2.
(iii) Metal X is more metallic than Y.
(iv) Atomic size of X is bigger than that of Y.
(v) Chloride XCl; YCl2
(vi) Sulphate X2SO4;YSO4
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