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Carbon Dioxide

Basic nature ...

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Basic nature of oxides of group13 element increases down the group

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P_{2} O_{3}

is more basic than

N_{2} O_{3}

.
Reason: Metallic nature of the oxides increases down the group.

Q. Basic natural of oxides of group

13

increases in the order.

Q. The following are some statements about periodic properties.
i) Atomic size decreases from left to right in a period.
ii) The EA of

2^{n d}

group elements in VA, VIA and VIIA are greater than the first element.
iii) Acidic nature of oxides decreases and basic nature of oxides of elements increased down the group.
iv) Atomic size increases from left to right in a period.

Basic Character increases down the group.

Q. Question 48 (b)
(a) Electropositive nature of the element(s) 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 a period (left to right)
(d) 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.

Name the most electronegative element.

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