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What is the relationship between the atomic number and effective nuclear charge in the periodic table?

29. What is the relationship between the atomic number and effective nuclear charge in the periodic table?

1. As the atomic number increases, the effective nuclear charge also increases
2. As the atomic number decreases, the effective nuclear charge also decreases
3. As the atomic number increases, the effective nuclear charge decreases
4. As the atomic number decreases, the effective nuclear charge increases

Answer

The correct answer is: A) As the atomic number increases, the effective nuclear charge also increases

Explanation

As we go from left to right in the periodic table, the atomic number increases, increasing the number of protons in the nucleus. As a result, the nucleus has a larger positive charge, which increases the effective nuclear charge.