Statement I: There is a high chemical reactivity of elements at extreme left and right of periodic table.
Statement II: $Δ_{e g} H and I . E$ increases from left to right along the period.

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Solution

Due to low ionisation energy at the extreme left, elements will be able to lose electrons with ease while high electron gain enthalpy at the extreme right of periodic table, elements will be able to gain electrons with ease. Hence high chemical reactivity is observed at the extreme ends of the periodic table.

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Similar questions

(a) What is a period in a periodic table? How do atomic structures (electron arrangements) change in a period with the increase in atomic numbers from left to right?

(b) How do the following change on going from left to right in a period of the periodic table?

(i) Chemical reactivity of elements (ii) Nature of oxides of elements

Give examples in support of your answer.

Q. Statement I: There is a high chemical reactivity of elements at extreme left and right of periodic table.
Statement II:

Δ_{e g} H and I . E

increases from left to right along the period.

Q. Statement I: The ionization energy generally increases as you move from left to right across the periodic table.
Statement II: Shielding increases as you move from left to right across the periodic table.

Q. Assertion :As we move from left to right the reactivity of the elements increases. Reason: Noble gases are placed at the extreme right of the period.

Q. Reactivity of the elements at the extreme left of the modern periodic table , reactivity of the elements on the extreme right group

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Statement I: There is a high chemical reactivity of elements at extreme left and right of periodic table. Statement II: ΔegH and I.E increases from left to right along the period.

Statement I: There is a high chemical reactivity of elements at extreme left and right of periodic table.
Statement II: $Δ_{e g} H and I . E$ increases from left to right along the period.