Which of the following sets of elements are arranged in order of decreasing atomic size in the Periodic Table?

A. 6C, 4Be, 7N, 😯
B. 4Be, 6C, 7N, 😯
C. 8O, 7N, 6C, 4Be
D. 7N, 8O, 6C, 4Be

Correct Answer: Option B

B. 4Be, 6C, 7N, 😯