The two properties of elements whose magnitude increase while going from top to bottom in a group of the
periodic table.
(i) Atomic size and electronegativity
(ii) Atomic size and electropositivity
(iii) Valency and basic nature of metal oxides.
(iv) Valency and electropositivity
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Answer:
valency and electropositivity
Explanation:
(a) Element with 3 as atomic number, i.e. Lithium
(b) Element with 9 as atomic number, i.e. Fluorine
(c) Fluorine
(d) Boron (5)
(e) Carbon, valency 4
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