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In the descending order of a group in th...

In the descending order of a group in the periodic table which of the following would be true
1) All the atoms have the same number of valence electrons
2) Gram atomic volume increases
3) Electronegativity decreases
4) Metallic character decrease and basic nature of their oxides decreases
Select the correct answer using the codes

A

1, 2 and 4

B

1 , 3 and 4

C

1 ,2 and 3

D

2 , 3 and 4

Text Solution

Verified by Experts

The correct Answer is:
C
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Which of the following properties show gradual decrease with increase in atomic number across a period in the periodic table?

(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 element which shows maximum valency.

(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.

NARAYNA-PERIODIC TABLE -All Questions
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  4. Which of the following represents second ionization potential ?

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  7. The electronegativity of carbon from the following data is nearly E(...

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  8. Which of the following statements is incorrect ?

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  10. N(0)//2 atoms of X(g) are converted into X^(+) (g) by energy E(1) . N(...

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  11. Which of the following triads have approximately equal size ?

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  12. Ionic radii of :

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  14. (a),(b) and (c) are elements in the second short period. Oxide of (a) ...

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  16. EN of the element (A) is E(1) and EA is E(2) hence IP will be :

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  17. For the element X, student Surbhi measured its radius as 102 nm, Mr. G...

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