from typing import Tuple


def split_iso_name(iso: str) -> Tuple[int, str]:
    """Split an isotope name into its components.

    :param iso: Name of isotope formatted, e.g., as "He-3"

    :return: A, Name, e.g., (3, "He").
    """
    iso_split = iso.split("-")
    return int(iso_split[1]), iso_split[0]