Here's why:
* Atomic Number: The number of protons in an atom's nucleus defines its element.
* Larger Atoms: Atoms with a higher atomic number have more protons and more electrons, leading to a larger atomic radius.
So, instead of a name, we talk about atoms with a high atomic number as being large atoms.
For example:
* Uranium (U) has an atomic number of 92, making it a large atom.
* Oganesson (Og) with an atomic number of 118 is the largest known naturally occurring element.
Let me know if you have any other questions!