Problem: In Section 7.2 in the textbook we said that Zeff  generally increases when you move down a column of the periodic table, whereas in Chapter 6 we saw that the "size" of an orbital increases as the principal quantum number n increases.With respect to atomic radii, do these trends work together or against each other?

FREE Expert Solution

We have to explain if the effective nuclear charge (Zeff) and size of an orbital work together or against each other.


Many properties of the atoms, such as ionization energy, electronegativity and electron affinity can be explained in terms of attraction between the nucleus and the valence electrons.

We will therefore see the effect of effective nuclear charge (Zeff) and the size of an orbital on attraction of nucleus to the valence electrons.

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Problem Details

In Section 7.2 in the textbook we said that Zeff  generally increases when you move down a column of the periodic table, whereas in Chapter 6 we saw that the "size" of an orbital increases as the principal quantum number n increases.

With respect to atomic radii, do these trends work together or against each other?

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