Which of the following elements will have the lowest first ionisation energy?

Which Of The Following Elements Will Have The Lowest First Chemistry Question

Which of the following elements will have the lowest first ionisation energy?

Options

(a) Li
(b) Mg
(c) Ca
(d) Rb

Correct Answer:

Rb

Explanation:

Rb belongs to I-A group and has maximum size. Hence, has lowest IE₁.

Related Questions:

  1. NaOH is prepared by the electrolysis of
  2. Which is the correct order of increasing energy of the listed orbitals in the atom
  3. Chloropicrin is obtained by the reaction of
  4. ‘Metals are usually not found as nitrates in their ores”. Out of the following two
  5. The action of nitrous acid on an aliphatic primary amine,gives

Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)

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