glowreeyahjohn9249 glowreeyahjohn9249

03-12-2019
Chemistry

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All of the following increase from left to right across the second period of the periodic table (Na - Ar) EXCEPT

effective nuclear charge
number of core electrons
number of valence electrons
atomic number

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Ayotundeadeboyeje Ayotundeadeboyeje

03-12-2019

Answer: effective nuclear charge

Explanation: This is because electrons are added to tell same shell at about the same distance from the nucleus

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