Now (January 2013) 97 chemical elements are considered as natural and 21 as man made.
Man-made elements are made in a particle accelerator.
At present there are more than 50 elements in the world. There are 92 natural and 115 total when we add the synthetic elements.
It was Plato who thought the elements in the physical world such as a desk, a man, and a dog, were imperfections or shadows of the eternal, perfect ideas of a desk, a man, and a dog. Plato was a Greek philosopher.
Transuranium Elements
112 Elements ( 92 Natural and 20 Man-made ) .
Yes, they are true chemical elements but man made.
Examples of man made elements: curium, californium, bohrium, mendelevium, nobelium etc.
The 26 transuranic elements (elements with atomic numbers higher than 92) are man-made. Some lists also count technetium (element 43) as man-made as well. --------------- Now (January 2013) 97 chemical elements are considered as natural and 21 as man made.
elements chart
The 5 man made elements of light is xenon,krypton,argon,neon,and helium.
All the existing elements are natural the man made elements are rare and have a very short life.
Out of the 112 elements known, 90 are found in nature and the rest (22 are man made).