Aluminum (Al) and silicon (Si) are in the same row (period) on the periodic table. The atomic radius of aluminum is 125 pm, while the atomic radius of silicon is 110 pm. Why is the aluminum atom larger than the silicon atom? Choose the best explanation. O Aluminum contains more electrons than silicon, so the electron cloud is larger. O The valence electrons in aluminum experience a lower effective nuclear charge than those in silicon, so they aren't pulled as strongly toward the nucleus. Valence electrons in aluminum are attracted to only 13 protons, while those in silicon are attracted to 14 protons, so the valence electrons aren't pulled as strongly toward the nucleus in aluminum. O Atomic radius decreases left-to-right on the periodic table and aluminum is farther to the left.

Aluminum (Al) and silicon (Si) are in the same row (period) on the periodic table. The atomic radius of aluminum is 125 pm, while the atomic radius of silicon is 110 pm. Why is the aluminum atom larger than the silicon atom? Choose the best explanation. O Aluminum contains more electrons than silicon, so the electron cloud is larger. O The valence electrons in aluminum experience a lower effective nuclear charge than those in silicon, so they aren't pulled as strongly toward the nucleus. Valence electrons in aluminum are attracted to only 13 protons, while those in silicon are attracted to 14 protons, so the valence electrons aren't pulled as strongly toward the nucleus in aluminum. O Atomic radius decreases left-to-right on the periodic table and aluminum is farther to the left.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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