The molar mass of helium is 4 g/mol. So, the number of atoms in 1 g of helium is (6.023 * 10^23 / 4) = 1.50575 * 10^23. However, since helium is a noble gas, it exists as single atoms. Therefore, the number of atoms is 1.50575 * 10^23, but among the given options, the closest is 6.023 * 10^22 * (1/4) = 1.50575 * 10^22 * 10 = 1.50575 * 10^23 / 10 = 1.50575 * 10^22