The following diagram shows a part of the periodic table in which the elements are arranged according to their atomic numbers. (The letters given here not the chemical symbols of the elements): a 3 b 4 c 5 d 6 e 7 f 8 g 9 h 10 i 11 j 12 k 13 l 14 m 15 n 16 o 17 p 18
(i) Which element has a bigger atom
(i) Element a has a bigger atom as the size of an atom decreases from left to right in a period.
(ii) Element k has a higher valency as valency of k = 3 and the valency of o = 1.
(iii) Element i is more metallic as the metallic character decreases from left to right in a period.
(iv) Element g is more non-metallic as the non-metallic character increases from left to right in a period.
(v) Elements b or j are metals with a valency of 2 as they have 2 valence electrons and are placed on the left side of the periodic table.
(vi) Elements f or n are nonmetals with a valency of 2 as they have 2 valence electrons and are placed on the right side of the periodic table.
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