How many elements are in a atom?

Answer 1

i don't know about 2

Answer 2

An atom typically consists of three main subatomic particles: protons, neutrons, and electrons. The number of these particles in an atom determine its atomic number and mass number, which can vary depending on the element.

Answer 3

There is only one element in an atom because elements are atoms. There is only one atom in an element and one element in an atom.