All Acronyms. CTA - Control Terminal Agency [Internet]; April 13, 2017 [cited 2017 APR 13]. Available from: https://www.allacronyms.com/CTA/Control_Terminal_Agency.
There are almost 120 known elements. For example, you are made up of billions of billions of atoms but you probably won't find more than 40 elements (types of atoms) in your body. Chemists have learned that over 95% of your body is made up of hydrogen (H), carbon (C), nitrogen, oxygen, phosphorus (P), and calcium (Ca).
How many atoms are in a human cell? A: According a study from Washington University, there are approximately 100 trillion atoms in a human cell. Approximately the same number of cells are in the entire human body, meaning that 10 octillion atoms, or a 1 followed by 28 zeros, make up each person. Continue Reading. The 100 trillion figure is a close approximation for the number of atoms in a cell, but there are many reasons that it is not an exact figure. Among other variables, human cells attain vastly different sizes. For example, blood cells are a few micrometers in diameter, while neurons can be up to 0.1 millimeters in length.