All Acronyms. CTA - Control Terminal Agency [Internet]; April 13, 2017 [cited 2017 APR 13]. Available from: https://www.allacronyms.com/CTA/Control_Terminal_Agency.
Home Science Howmanyarethere 28 March 2011 4536 Views. There are 118 known chemical elements as of 2011.First element on the periodic table is Hydrogen the latest one is Ununoctium. The table contains 118 chemical elements whose discoveries have been confirmed. The first 94 are found naturally on Earth, and the rest are synthetic elements that have been produced artificially in particle accelerators.
So if the number of protons is 29, then so is the number of electrons. Then to find the number of neutrons, subtract the atomic number from the mass number. 64 - 29 = 35. Therefore there are 29 electrons and protons and 35 neutrons in the element copper.