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V.3 With reference to group 1 [IA) of the periodic tab The elements are elements have - [large/small). The energy [increases / decreases) down the su down the subgroup and with electronic configurati atomic size d hence the don of the element whose hydroxide is a wtan - "P LAJ of the periodic table - fill in the blanks with the correct word: - (light/heavy) — [metals/non-metals] since their atom nally. The energy binding the atoms is [high/low] and be - (high/low] melting points. The melting points of the elements cases down the subgroup. The electropositive character - - [increases/ dec subgroup and the elements are strong _ [reducing/oxidizing] agents. The [higher/lower electronaffinity and "/larger) atomic size than the element with electronic configuration 2,1. / decreases che elemen L L ant group they belang fram calumn VI

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Q1
With reference to group 1(IA) of the periodic table - fill in the blanks with the correct word:
The elements are -------(light/heavy) -------(metals/non-metals) since their atomic size is --------(large/small). The energy binding the atoms is ---------(high/low) and hence the elements have -------(high/low) melting points. The melting point of the elements ------(increases/decreases) down the subgroup. The electropositive character -------(increases/decreases) down the subgroup and the elements are strong --------(reducing/oxidizing) agents. The element with electronic configuration 2,8,1 will have --------(higher/lower) electronaffinity and ---------(smaller/larger) atomic size than the element with electronic configuration 2,1.
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Q2


(i) Electropositive nature of the element(s) increases down the group and decreases across the period
(ii) Electronegativity of the element decreases down the group and increases across the period
(iii) Atomic size increases down the group and decreases across a period (left to right)
(iv) Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.

Which is the element with the smallest atomic size


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Q3

(a) Electropositive nature of the element increases down the group and decreases across the period.
(b) Electronegativity of the element decreases down the group and increases across the period.
(c) Atomic size increases down the group and decreases across the period.
(d) Metallic character increases down the group and decreases across the period.
On the basis of the above trends of the periodic table, answer the following about the elements with atomic number 3 to 9.
Name the element which is a metalloid.


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Q4
i) Electropositive nature of the element(s) increase down the group and decreases across the period.
ii) Electronegative of the element decreases down the group and increases across the period.
iii) Atomic size increases down the group and decreases across a period (left to right).
iv) Metallic character increases down the group and decreases across a period.
On the basis of above trends of the Periodic Table,asnwer the following about the elements with atomic numbers 3 to 9.
a) Name the most electropositive element among them
b)Name the most electronegative element.
c) Name the element with smallest atomic size.
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Q5
(i) Electropositive nature of the element(s) increases down the group and decreases across the period
(ii) Electronegativity of the element decreases down the group and increases across the period
(iii) Atomic size increases down the group and decreases across a period (left to right)
(iv) Metallic character Increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.
(a) Name the most electropositive element among them
(b) Name the most electronegative element
(c) Name the element with smallest atomic size
(d) Name the element which is a metalloid
(e) Name the element which shows maximum valency.
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