Elements of Living Organisms

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What percentage of elements in living organisms is composed of oxygen?

65%

What is the term for the number of protons in an atom?

Atomic Number

What is the result of a dehydration synthesis reaction?

The formation of H2O

What is the approximate percentage of hydrogen in living organisms?

<p>10%</p> Signup and view all the answers

Why do cells not collide with each other?

<p>Because they are negatively charged</p> Signup and view all the answers

What is the term for atoms that have the same number of electrons and protons?

<p>Neutral Atoms</p> Signup and view all the answers

What is the main difference between biological macromolecules and other molecules?

<p>They contain carbon and hydrogen</p> Signup and view all the answers

What is the purpose of the periodic table?

<p>To organize elements according to their shared chemical and physical properties</p> Signup and view all the answers

What is the approximate percentage of carbon in living organisms?

<p>18%</p> Signup and view all the answers

What is the term for the process of emitting neutrons, protons, and electrons to achieve a more stable atomic configuration?

<p>Radioisotopes</p> Signup and view all the answers

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