Among the elements of the second period, Li to Ne, pick out the element:
(i) with the highest first ionization energy.
(ii) with the highest electronegativity.
(iii) with the largest atomic size.
(iv) that is the most reactive non-metal.
(v) that is the most reactive metal.

Open in App

Solution

(i) Neon has a completely filled valence shell; hence, it has the highest first ionisation energy.
(ii) Fluorine is small-sized and it has a high nuclear charge; therefore, it has the highest electronegativity.
(iii) Lithium has the lowest nuclear charge; it is the largest atom in the second period.
(iv) The reactivity of non-metals increases on moving left to right across a period up to fluorine; hence, fluorine is the most reactive non-metal.
(v) Lithium is the most reactive metal because of its large size and small ionisation energy.

Suggest Corrections

Similar questions

Q. Among the element of the second period Li to ne pick out the element:
(i) with the highest first ionisation energy
(ii) with the highest electronegativity
(iii) with the largest atomic radius Give the area-son for your choice.

Q. In the second period, Li to Ne identify the element
(a) Most reactive element
(b) Most non-reactive non-metal
(c) Largest atomic radius
(d) With valency equal to 4

Q. Among the elements of the second period Li to Ne pick out the element :
(i) with the highest first ionisation energy

(g) From the elements given below name the following:
Li, Be, B, C, N, O, F, Ne.
(i) Most electronegative element.
(ii) Which element has highest electron affinity?
(iii) Most metallic element?
(iv) Which element has the largest size?
(v) Name the tetravalent element.

Q. Explain:
(i) Larger the atomic size, more metallic is the element.
(ii) Halogens have high electron affinity.
(iii) Size of atom changes when it loses or gain electron.
(iv) K is more reactive than Li.
(v) Electronegativity of Cl is higher than S.
(vi) Group 17 elements are non-metals, while group 1 elements are metals.

Join BYJU'S Learning Program

Among the elements of the second period, Li to Ne, pick out the element: (i) with the highest first ionization energy. (ii) with the highest electronegativity. (iii) with the largest atomic size. (iv) that is the most reactive non-metal. (v) that is the most reactive metal.

Among the elements of the second period, Li to Ne, pick out the element:
(i) with the highest first ionization energy.
(ii) with the highest electronegativity.
(iii) with the largest atomic size.
(iv) that is the most reactive non-metal.
(v) that is the most reactive metal.