Of the elements with atomic numbers 1-18 (Hydrogen to Argon), the element with the largest atom is any of the ones in period 3 (Sodium to Argon) (Na, Mg, Al, Si, P, S, Cl, Ar). However, Argon has the most electrons in that region, so it has the highest atomic number.
An element is a substance in which every atom is the same. There are 118, 112 of which have been discovered.
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.
As of now, there are 118 known elements on the periodic table. These elements range from hydrogen (element 1) to oganesson (element 118).
If the atomic number is 118, the number of protons is 118. Atomic number is the number of protons in the nucleus of an atom. The elements are arranged in increasing order of atomic number. All of the atoms of an individual element have the same atomic number. Atomic number identifies an element.
118 elements
There are currently 118 elements in the periodic table, with elements beyond uranium being synthetic and not found in nature.
There is no element 173. The highest numbered element known is element 118, which is called ununoctium.
Element
Probably not. As of 2013, the last known element is #118. It is possible that additional elements will be discovered after that one. The heaviest stable element is lead, element #82. It is unlikely that any heavier element will be stable. In general, the tendency is for heavier elements to be less stable.
The last element for which there are claims of discovery is Uus, element 117. That completes the 118 elements on the periodic table.
95- 118
Elements with atomic number 112 to 118