Question

1. which grouping of circles, when considered in order from the top to the bottom, best represents the relative size of the atoms of li, na, k, and rb, respectively? 1 point

Explanation:

Step1: Recall atomic size trend

In a group (vertical column) of the periodic table, atomic size increases as we move down the group. The order of elements from top to bottom in the group (alkali metals) is \(Li\), \(Na\), \(K\), \(Rb\). So, their atomic size should follow the order \(Li

Step2: Analyze each option

• Option (1): The circles are in increasing order of size, which matches \(Li
• Option (2): The order of sizes is not in the correct \(Li
• Option (3): The order of sizes is not in the correct \(Li
• Option (4): The order of sizes is not in the correct \(Li

Answer:

(1)