Rank these elements according to first ionization energy. Highest ionization ene

Question

Rank these elements according to first ionization energy. Highest ionization energy Lowest ionization energy Incorrect You have correctly identified the general trend, with the noble gas at the top and the alkali metal at the bottom. However, there are two exceptions within this general trend. The atom with the ns^2 electron configuration is particularly stable and should move up one spot in the ranking. Similarly, the atom with the ns^2np^3 electron Configuration is particularly stable and should move up one spot in the ranking.

Explanation / Answer

Periodic trends in ionisation energy is:-

A) increase across period

B) decrease down the group.

Exception are possible in above general trend due to stable electronic configuration.

Order of ionisation energy from highest to lowest is:-

Ar

Cl

P(stable configuration)

S

Si

Mg(stable configuration)

Al

Na

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.