Which number is called Avogadro's constant, named after the 19th century scientist Amedeo Avogadro?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 6.022 × 1023
Avogadro's constant is approximately 6.022 x 10²³ particles per mole. Named after the 19th-century scientist Amedeo Avogadro, it represents the number of constituent particles (atoms, molecules, ions) in one mole of a substance. This constant is fundamental in chemistry and physics, linking the macroscopic world of moles to the microscopic world of atoms and molecules. It allows scientists to convert between the number of particles and the amount of substance, making it essential for calculations in various scientific fields.