Which of the following best describes Avogadro's number?
A
6.022 x 10^20
B
6.022 x 10^23
C
6.022 x 10^26
D
6.022 x 10^29
Correct Answer: Option B — 6.022 x 10^23
Explanation:
Avogadro's number, 6.022 x 10^23, represents the number of particles present in one mole of any substance. This fundamental constant bridges the gap between atomic-scale quantities and measurable macroscopic amounts of matter.