In halogens- with the increase of atomic number - In MX2-M-metal and X-halogen- covalent properties decreases-Ionization potential decreases-Habit to loose electrons decreases-Ionic radii decreases-

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Standard XII

Chemistry

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In halogens, ...

Question

In halogens, with the increase of atomic number ...

Habit to loose electrons decreases

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Ionic radii decreases

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Ionization potential decreases

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In MX₂ (M=metal and X= halogen), covalent properties decreases

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Solution

The correct option is B
Ionization potential decreases

Ionization potential decreases.

This happens because the increase in size leads to a reduction in effective nuclear charge due to shielding effect and penetration effect, and this leads to a lesser attraction on the outer electrons.

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Similar questions

Parts (a) to (e) refer to changes in the properties of elements on moving from left to right across a period of Periodic Table. For each property, choose the correct answer.

(a) The non-metallic character of the elements :

(i) decreases, (ii) increases,

(iii) remains the same, (iv) depends on the period

(b) The electronegativity :

(i) depends on the number of valence electrons,

(ii) remains the same,

(iii) decreases,

(iv) increases.

(i) goes up and down (ii) decreases

(iii) increases (iv) remains the same

(d) The atomic size :

(i) decreases,

(ii) increases,

(iii) remains the same ,

(iv) sometimes increases and sometimes decreases.

(e) The electron affinity of the elements in groups 1 to 7 :

(i) goes up and then down.

(ii) decreases and then increases,

(iii) increases,

(iv) decreases.

Q. Identify the correct statements from the following.
(a) An element with low ionization potential has high electropositivity and hence give out electrons easily.
(b) Due to decrease in ionization energy, in a group, the oxidizing property decreases.
(c) Electronegativity decreases along a period due to increase in nuclear charge and increase in atomic size.
(d) Due to increase in electron affinity the reducing property increases along a period.

Q. Assertion :Size of atoms of inert gases are smaller than those of the preceding halogens. Reason: Covalent or van der Waals' radii generally decreases with increase in atomic number along a period.

Read both assertion and reason and choose the correct option regarding it.

Q. Assertion :A decrease in ionisation potential of an element leads to decrease in non-metallic character of the element. Reason: As ionisation potential decreases, its ability to loose electron increases while its ability to gain electron decreases

Q. Increase in nuclear charge of an atom decreases the tendency of the atom to loose electrons.

In halogens, with the increase of atomic number ...

The correct option is B Ionization potential decreases Ionization potential decreases. This happens because the increase in size leads to a reduction in effective nuclear charge due to shielding effect and penetration effect, and this leads to a lesser attraction on the outer electrons.

The correct option is B
Ionization potential decreases

Ionization potential decreases.

This happens because the increase in size leads to a reduction in effective nuclear charge due to shielding effect and penetration effect, and this leads to a lesser attraction on the outer electrons.