https://www.thoughtco.com/how-many-elements-found-in-nature-606635

Apr 26, 2018 ... Some elements have been made by man, but don't exist naturally. Discover which elements are found in nature and how many there are.

https://chemistry.tutorvista.com/inorganic-chemistry/natural-elements.html

Electrons first identified by J.J. Thomson in 1896 by cathode ray experiment. But the electron's charge was measured by physicist Robert Millikan in their oil-drop  ...

https://en.wikipedia.org/wiki/Chemical_element

A chemical element is a species of atom having the ...... Occurrence, as indicated by a footnote adjacent to the element's name, distinguishes naturally occurring elements, ...

https://www.angelo.edu/faculty/kboudrea/periodic/physical_natural.htm

Information about various chemical compounds and elements. ... The table below lists the longest-lived isotopes of the transuranium elements, with their ...

http://nutrients.ifas.ufl.edu/nutrient_pages/BSFpages/NaturalElements.htm

Naturally Occurring Elements. Element, Symbol, Atomic No. Atomic Weight, Element, Symbol, Atomic No. Atomic weight. Hydrogen*, H, 1, 1.008, Silver, Ag, 47 ...

https://www.lenntech.com/periodic/name/alphabetic.htm

alphabetical list of chemical elements periodic table chart. ... Please note that the elements do not show their natural relation towards each other as in the ...

https://www.lenntech.com/periodic-chart-elements/discovery-year.htm

Please note that the elements do not show their natural relation towards each other as in the Periodic system. There you can find the metals, semi-conductor(s),  ...

https://hobart.k12.in.us/ksms/PeriodicTable/naturalphase.htm

Elements appear in their natural phase at room temperature as gas, liquid, solid or synthetic. For a complete list of the different states of matter, visit Wikipedia's ...

https://www.quora.com/How-many-natural-elements-are-found-in-nature

Out of 118 known elements, 92 are found in nature. Rest are synthesized, i.e., man-made. In the periodic table, top 92 elements are found in ...

https://www.euronuclear.org/info/encyclopedia/e/elementartifical.htm

The artificial elements include the elements technetium (atomic number Z = 43), promethium (Z = 61) and the tran-suraniums (Z > 92). ... natural nuclear fissions ( about 1 pluto-nium atom per 1012 uranium atoms). ... List of artificial elements.