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).
In Chemistry.   There are 92 natural elements, and 21 manmade elements, for a total of 113 elements-all of which exists on earth. You probably learned there are 108 elements, but in â¦ the past 2 decades, they have discovered (or made) 5 more. This only means that you probably went to highschool in the early 90s like me.