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www.wisegeek.com/how-many-elements-on-the-periodic-table...

The answer to the question of how many objects on the periodic table of the elements are naturally occurring is actually a bit complicated. Conventional wisdom says that the first 92 elements, from element 1, hydrogen, to element 92, uranium, are all naturally occurring, but in fact, some of these elements are highly unstable, and have only been observed when they have been created artificially.

www.thoughtco.com/how-many-elements-found-naturally-606636

There are 118 different elements currently on the periodic table.Several elements have only been found in laboratories and nuclear accelerators. So, you may wonder how many elements can be found naturally.

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

It used to be believed that of the first 92 elements on the periodic table (1 is hydrogen and 92 is uranium) that 90 elements occur naturally. Technetium (atomic number 43) and promethium (atomic number 61) were synthesized by man before they were identified in nature.

en.wikipedia.org/wiki/Periodic_table

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties.The structure of the table shows periodic trends.The seven rows of the table, called periods, generally have metals on the left and non-metals on the right.

sciencenotes.org/what-are-the-naturally-occurring-elements...

Native Elements and Naturally Occurring Elements. The remaining elements can be divided into two categories: native elements and non-native elements. A native element is an element which appears in nature in a pure form. Non-native elements are only found in nature as part of a compound.

www.livescience.com/25300-periodic-table.html

The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number ...

www.answers.com/Q/What_is_the_last_naturally_occuring...

Uranium, with atomic number 92, is the last naturally occurring element on the periodic table.

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

It has been theorized that the elements following element 112, which would be in the p-block region of the periodic table, might possibly be more stable than those of the last row of the transition metals (103-112); however, there is not as yet enough data to confirm whether this so-called "island of stability" actually exists.

www.periodictable.co.uk/faq

[[The Element Collection is a boxed set of all the naturally occurring elements in the periodic table. 92 chemical elements are provided as samples that can be removed from their wood presentation case to study in individual sealed glass vials engraved with an identifying chemical symbol.

en.wikipedia.org/wiki/Chemical_element

A chemical element is a species of atom having the same number of protons in their atomic nuclei (that is, the same atomic number, or Z). For example, the atomic number of oxygen is 8, so the element oxygen consists of all atoms which have exactly 8 protons.. 118 elements have been identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements.