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AFOQT Exam Prep 53, Atomic Structure and the Periodic Table
Published 3 months, 2 weeks ago
Description
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- The atomic number is the number of protons and uniquely identifies an element.
- Mass number is the sum of protons and neutrons; the difference between mass number and atomic number equals the neutron count.
- Isotopes are atoms of the same element with different numbers of neutrons, while ions are atoms that have gained or lost electrons.
- Atomic radius generally decreases from left to right across a period and increases from top to bottom down a group.
- Ionization energy follows the opposite trend of atomic radius, increasing across a period and decreasing down a group.
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