An element is a substance in which every atom is the same. There are 118, 112 of which have been discovered.
The plural of element is elements. As in "our planet has many elements".
carbon is an element
Gallium is a chemical element. One might say it has one element.
sodium is an element - it therefore does not use elements
118 elements
An electron is not an element.
There is not element that contains NH3, NH3 is a compound made of two different elements. An elements is made of nothing but itself.
Carbon
ONE, Helium is an element, not a molecule.
Helium is one element and does not chemically react.
"H" or Hydrogen is an element, there are no other elements in it because all elements are pure substances.
There are 117 elements in the periodic table. Elements 1-116 and element 118. IMPROVED ANSWER --------------------------------------------------------------------------------------- 118, but element 117 is so unstable they do not officially count it as being an element on the periodic table yet.