Fill in the blanks from the choices given below-i Across a period- the ionisation potentialii Down the group- electron affinity increases- decreases- remains same-

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Standard X

Chemistry

Halogens

Fill in the b...

Question

Fill in the blanks from the choices given below:
(i) Across a period, the ionisation potential __ (increases, decreases, remains same).
(ii) Down the group, electron affinity _ (increases, decreases, remains same).

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Solution

(i) Across a period, the ionisation potential increases.
(ii) Down the group, electron affinity decreases.

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Similar questions

Q. Part (i) to (v) refer to changes in the properties of elements on moving from left to right across a period of the periodic table. For each property, choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d).
(i) The non-metallic character of the elements:
(a) decreases
(b) increases
(c) remains the same
(d) depends on the period

(ii) The electronegativity:
(a) depends on the number of valence electrons
(b) remains the same
(c) decreases
(d) increases

(iii) The ionisation potential:
(a) goes up and down
(b) decreases
(c) increases
(d) remains the same

(iv) The atomic size:
(a) decreases
(b) increases
(c) remains the same
(d) sometimes increases and sometimes decreases

(v) The electron affinity of the elements in groups 1 to 7:
(a) goes up and then down
(b) decreases and then increases
(c) increases
(d) decreases

Q. Choose the correct answer:
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
(a) Atomic size increases from left to right across a period.
(b) Ionisation potential increases from left to right across a period.
(c) Electron affinity increases going down a group.
(d) Electronegativity increases going down a group.

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. Ionisation energy increases across a period but decreases down a group.

Q. The amount of energy released when an atom in the gaseous state accepts an electron to form an anion. factor which affect electron affinity are: atomic size and Nuclear charge. As atomic radii increases, electron affinity increase. As nuclear charge increase, electron affinity increase. it decrease down a group and increases across a period. Explain.

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Fill in the blanks from the choices given below: (i) Across a period, the ionisation potential __________ (increases, decreases, remains same). (ii) Down the group, electron affinity _________ (increases, decreases, remains same).

(i) Across a period, the ionisation potential increases. (ii) Down the group, electron affinity decreases.

Fill in the blanks from the choices given below:
(i) Across a period, the ionisation potential __ (increases, decreases, remains same).
(ii) Down the group, electron affinity _ (increases, decreases, remains same).

(i) Across a period, the ionisation potential increases.
(ii) Down the group, electron affinity decreases.