• subtext@lemmy.world
    link
    fedilink
    arrow-up
    2
    ·
    edit-2
    2 hours ago

    The redefinition of the mole in 2019, as being the amount of substance containing exactly 6.02214076×10^23 particles

    Since the 2019 SI redefinition, avogadro’s number is a constant.

    https://en.wikipedia.org/wiki/Avogadro_constant

    Edit: looks like we were both right! I was reading through your link and it seems the work reported by the NIST led to the exact definitions for Avogadro’s number and the Planck constant.