which of the following statement about effective nuclear charge for the outermos

Question

which of the following statement about effective nuclear charge for the outermost electron of an electron is incorrect

a. the effective nuclear charge can be throught of as the true nuclear charge minus a screening constant due to theother electron in the atom.

b. effective nuclear charge increases going left to right across a row of the periodic table

c. valence electrons screen the nuclear charge more effetively than do core electrons

d. the effetive nuclear charge shows a sudden decrease when we go fom the end of one row to the beginning of the next row of the periodic table

e.the change in effective nuclear charge going down a column of th eperiodic table is generally less than that going across a row of the periodic table.

Explanation / Answer

c. valence electrons screen the nuclear charge more effetively than do core electrons

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