Question

look closely at the illustration below, which shows a part of the periodic table. which two elements have properties that are the most similar? a. c and f b. he and ne c. al and si d. n and s

Explanation:

Step1: Recall periodic - table trends

Elements in the same group of the periodic table have similar chemical properties.

Step2: Identify group - elements

Helium (He) and Neon (Ne) are both noble gases and are in Group 18 of the periodic table.

Answer:

B. He and Ne