On moving from left to right across a period in the table, the metallic character :

increases

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decreases

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remains constant

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first increases and then decreases

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Solution

The correct option is B decreases
The ionization energy increases in a period. This decreases the electropositive character and metallic nature.

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Similar questions

Q. Given below are two statements : one is labelled as
Assertion (A) and the other is labelled as
Reason (R).

Assertion (A) : Metallic character decreases and non-metallic character increases on moving from left to right in a period.

Reason (R) : It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.

In the light of the above statements, choose the most appropriate answer from the options given below :

(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.

Name the element which is a metalloid

Q. On moving from left to right in a period of the periodic table, the atomic number of elements increases. What happens to the size of atoms of elements on moving from left to right in a period?

(a) increases
(b) decreases
(c) remain the same
(d) first increases then decreases

Q. Question 48 (d)
(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 is a metalloid.

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On moving from left to right across a period in the table, the metallic character :

The correct option is B decreasesThe ionization energy increases in a period. This decreases the electropositive character and metallic nature.

The correct option is B decreases
The ionization energy increases in a period. This decreases the electropositive character and metallic nature.