question archive The question was Which of the following properties generally decreases across the periodic table from sodium to chlorine? and I said atomic radius but got it wrong
The question was Which of the following properties generally decreases across the periodic table from sodium to chlorine? and I said atomic radius but got it wrong
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The question was Which of the following properties generally decreases across the periodic table
from sodium to chlorine? and I said atomic radius but got it wrong. why would that be wrong and what would the correct answer be?
(A) First ionization energy
(B) Atomic mass
(C) Electronegativity
(D) Maximum value of the oxidation number
(E) Atomic radius
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Atomic radius
Step-by-step explanation
Atomic radius generally decreases across the period because the valence electron are added to the same energy level while at the same time protons are increasing. Increasing proton increases the nuclear charge that hold the valence electron more close to the nucleus.
