The mass of a hydrogen atom is about 1.67 × 10 ^ -27 kg. Express this as a whole number

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it