Question

This figure represents the successive ionization energy of an atom in the third period of the periodic table. Part A 12,000 10,000 Which atom is this most likely to be? Express your answer as a chemical symbol. 8000 Energy (kJ/mol) = AEON 2 ? 100 Mg 2000 Submit Previous Answers Request Answer Ei E:2 E 3 E A X Incorrect; Try Again; 5 attempts remaining

Answer 1

Here we can see , the first ionisation energy is very low compare to second , third and forth one .

This indicates , that the first ionisation is relatively easier than other ionisations , that means , first ionisation produces a stable half filled or full filled electronic structure .

The best possible answer of this question will be sodium (Na) .

Na(1s²2s²2p⁶3s¹) by first ionisation , gets full filled stable configaration Na⁺(1s²2s²2p⁶) . Then , the rest ionisations are from 2p orbitals and associated with higher energy . So , the answer will be - Sodium (Na) .

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