Science

What percentage of atoms in the human body are hydrogen?

Around 62 percent

Background

About 62 out of every 100 atoms in the body are hydrogen. This comes mostly from the large amount of water in us. By weight, hydrogen barely counts, since it is so light. So we are built together a bit lighter than it seems at first.

More Science questions

How many bones are in the human body?

See question

How many layers does the Earth’s atmosphere have?

See question

How many chromosomes do humans have?

See question

How many moons does Mars have?

See question

How many teeth does an adult human typically have?

See question

How many electrons are in a neutral helium atom?

See question

Ready to estimate?

Over 1,200 questions, 9 categories, one click.