Question

In the box provided explain why living organisms

contain more hydrogen atoms than any other
atoms, yet 65% of a typical organism's mass is
oxygen​

Answer 1

The reason is that Oxygen atoms contain 16 times more mass than Hydrogen atoms.

Explanation:

Hydrogen H11 Has only one proton and no neutrons and so has an atomic number of 1 and a mass of 1

Oxygen O168 Has 8 protons and also 8 neutrons and having atomic number of 8 and a mass of 16.

Hydrogen takes 16 Hydrogen atoms to equal the mass of 1 oxygen atom.

Step-by-step explanation:

Answer 2

Living organisms contain more hydrogen atoms than any other atoms, yet 65% of a typical organism's mass is oxygen​ because hydrogen contains 16 times less mass than oxygen.

Step-by-step explanation:

• Oxygen has the atomic mass of 16 where as the mass of one atom of hydrogen is only 1.
• So sixteen times more hydrogen is required to make its mass equivalent to oxygen (i.e. one atom of oxygen's mass= mass of 16 atoms of hydrogen), so hydrogen is required in large number.
• Hydrogen is very simple element consisting of 1 neutron and 1 proton.