Xenon has 54 protons. The number of protons in an atom’s nucleus is known as its atomic number, and for xenon, this number is 54. This means that every xenon atom has 54 positively charged protons, which also defines it as xenon and distinguishes it from other elements.
Protons play a crucial role in the identity of an element; they determine the element’s chemical properties and its placement in the periodic table. Since xenon is a noble gas, it is relatively unreactive and has a complete outer electron shell, which contributes to its stability.