Structure of an Atom - What is the Structure of an Atom

Structure of an Atom - What is the Structure of an Atom?

Atoms are composed of smaller particles called protons, neutrons and electrons.
Then Atom consists of a cloud of electrons, surrounding the core - protons and neutrons. 
The electrons and protons have electric charge, which affects the way they interact with each other and with other electrically charged particles.
Electrons have a negative electrical charge, while protons have positive. 
The negative charge is the opposite of the positive charge, and as the opposite poles of a magnet, this opposite electrical charges attract.
However, as the charges (negative and negative or positive and positive) repel.
The attraction between the electrons of an atom and its protons holds the atom together. Normally, an atom is electrically neutral, meaning that the negative charge of the electrons is exactly equal to the positive charge of the protons.
The core contains nearly all of the mass of an atom, but it occupies only a small fraction of the interior space of the atom. The typical diameter of a nucleus is only about 1 × 10-14 m (4 x 10 - 13 in), or about 1/100, 000 of the diameter of the atom.
The electron cloud constitutes the rest of the overall size of the atom.
If an atom is magnified until it is as big as a football stadium, the nucleus would be the size of a grape.
What is the Structure of an Atom