Final answer:
One way to remember periodic trends, including atomic radius, is to use mnemonic devices. You can also memorize the periodic table and create flashcards with the trends to aid in remembering the information. The correct answer is option b.
Step-by-step explanation:
One way to remember periodic trends, including atomic radius, is to use mnemonic devices. Mnemonic devices are tools for improving memory that help you retain information. For example, you can use the phrase 'Great Zebras Eat Excellent Apples' to remember that within each period, the trend in atomic radius decreases as atomic number increases. 'Great Zebras' represents 'Group (or period) Zero,' which refers to the noble gases at the end of each period with the smallest atomic radii, and 'Eat Excellent Apples' represents 'Elements at the beginning of a new period have the largest atomic radii.'
Memorizing the periodic table can also be helpful, as it provides a visual representation of the elements and their arrangement. You can use the table as a reference to understand the general trends in atomic radius within each period and group.
Creating flashcards with the trends and reviewing them regularly can also aid in remembering the periodic trends, including atomic radius. Flashcards allow you to test yourself and reinforce your understanding of the concepts.