Question

Assertion (A) : Second IE of all elements are always higher than first IE.

Reason (R) : IE of noble gas elements are highest in their respective period.

(a) Assertion and reason both are correct statements and reason is correct

explanation for assertion.

(b) Assertion and reason both are correct statements but reason is not correct

explanation for assertion.

(c) Assertion is correct statement but reason is wron.g statement.

(d) Assertion is wrong statement but reason is correct statement.​

Answer 1

Assertion and reason both are correct statements but reason is not correct

explanation for assertion. (Option b)

• Ionization energy refers to the energy required to remove an electron from the outermost shell of an atom.
• The second ionization energy is always higher than the first because the electrons are strongly held to the nucleus and greater energy will be needed to overcome the forces of attraction.
• Ionization energy of noble gases is the highest in the respective period because they have a stable electronic configuration.