Explain the reason for the variation of the first ionization energies

Question

Explain the reason for the variation of the first ionization energies of the third period elements.

22 Jan 2025

Answer :

Word Count : 295

The variation in the first ionization energies of the third-period elements can be explained by several factors, including atomic size, nuclear charge, and electron configuration.

As we move across the third period from left to right, the atomic number increases, meaning the number of protons in the nucleus also increases. This results in a greater nuclear charge, which attracts the electrons more strongly. However, the shielding effect caused by inner electrons remains relatively ________ __________ ____ ____ __________ ____ ____ _________ ___ __________.
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